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Opus 88 Koloro Demonstrator Fountain Pens Reviews

quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
Overall rating:
4.8
out of 5
(25 reviews)

 
Improves on the superb regular Koloro in almost every way. Has a big, wet, #6 nib, and a bigger, smoother body.
It loses a point in functionality because the cap can't be posted. But a pen this large doesn't need to be posted anyway.
It can hold lots of ink without the dreaded eyedropper burp issues.
Overall, with a collection now exceeding 150 pens,this is one of my favorites.

BROOKLYN, NY
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
A splendid pen with a huge nib that gives plenty of feedback. I find Opus 88 pens very reliable and Great to use. This model is gorgeous and very well made.

Ottawa, ON
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
This has quickly taken over as my preferred pen for long note-taking in my grad school lectures. A wet writer, with an ultra smooth medium nib out the box! Best out of box experience since my Faber-Castell Loom’s (both M and F).

The Koloro fills its role as a long-use Pen very very well, but I docked 1 point for functionality because the screw cap requires 4 full turns to uncap; making it laborious, even when compared to other screw cap pens. Also, if you get a medium or broad nib, you will always need to unscrew the blind cap on the back to release the eye dropper seal. If you don’t, you’re gonna run into flow issues after half of a page of writing. I just unscrew the blind cap at the start of my lecture and leave it like that until I pack my stuff to leave. I would seal it if you are going to pocket the pen or put it back in a bag for travel to minimize slight ink splatters in the cap.

I also docked 1 point for value, as the this pen starts to compete with the pricings of entry level gold nibs (Platinum 3776, Pilot C74, Lamy 2000, Pilot VP, etc.). I’d like see the base retail price right below $100 due to the inclusion of a steel nib.

All that said, the Koloro Demo is the best steel nib I have ever had. Definitely worth the money if you can catch it on one of those generous sales Ron always seems to be running (like I did for ~$93). At the price I paid, this is best value to performance I have ever found.

Hillsboro, OR
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
I have had this pen about a week now, and I love it. I like demonstrators anyway, and this pen has a very interesting filling system. The pen is a smooth writer out of the box (it seems to have a JoWo nib). I bought the medium nib, and I like it with sheening inks particularly. I recommend the pen, especially during sale periods when it is quite affordable and an interesting choice.

Lafayette, LA
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
This pen was a lot lighter than I expected - it looks like glass, and I think that throws the brain. It’s roughly M1000 sized, which is really nice. It has a #6 Jowo nib in it, so it does swap with other Jowo nib. I changed mine out for a Black Goulet 1.5mm stub. Swapping is relatively easy, though the nib and feed are seated very tightly in the pen.

The eyedropper system feels very high quality. There’s an o-ring in the section and an o-ring behind the nib unit, so no need for silicone grease. I did grease the threads anyway behind the o-ring and on the blind cap, because they squeak something fierce. The cap threads also squeak, but I’m not a fan of grease on cap threads.

The pen writes well - moderate wetness and smooth, with good flow. It’s really comfortable, and I think it’s really cool.

Apple Valley, MN
overall: 4 out of 5
overall rating 4 out of 5
quality:
quality rating 4 out of 5
function:
function rating 4 out of 5
style:
style rating 4 out of 5
value:
value value 4 out of 5
I love the looks of this pen within my collection. Be aware, it’s a bigger pen. My collection runs along the Lamy, TWSBI, Pilot varieties. This big boy has a grip section that feels more like a child’s kindergarten crayon in comparison. But I’m getting used to it. The cap doesn’t post, but the pen feels balanced without it, and even full of ink, it’s not too heavy. I worried about that, as I have arthritis, but it’s not like a brass pen would be. The mechanism that allows you to close off the ink between the barrel and the feed still lets you write for a good long time, AND opening and closing that thing seems to get ink moving toward to nib when you need it, too. Overall, I really like the pen. I haven’t used it a whole lot yet, and have only had one ink in it so far (it holds a LOT of ink). I have Robert Oster Forest Green in it right now and I love it. This pen was a gift to me and I’m super grateful.

Bloomington , IL
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
I love this Pen. I love it's size, large. I think the stainless steel nib is very good. I had both a broad and a medium. The broad was so smooth with just a very very small hint of feedback, which I consider to be perfect. Ti was a great steady writer and fairly wet.
The medium nib also wrote very smooth with the same or slightly more feedback but very minimal over all. I love the way it writes. It is very dependable as regards ink flow.
If you like larger, beautiful pens, this is the one. Great ink capacity as a eye dropper, and it is absolutely nice to look at with your favorite ink color moving about in its barrel. Enjoy.

Minneota, MN
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
Really love this pen and the service was great - fast shipping!!

Morton, IL
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 3 out of 5
function:
function rating 3 out of 5
style:
style rating 3 out of 5
value:
value value 3 out of 5
This pen is a real gem. Having had some eyedropper fillers in the past, I was some hesitant since they all had some kind. of problem. This pen has a piston governor on
it, so I decided to try it. There has been no leakage at all, and I do not keep the piston closed either. It is there if I need it, but otherwise not really necessary from my experience under most normal conditions. Writing with this pen is sheer pleasure. Ink flow is great, and the nib is a smooth writer with an excellent line width (M nib). Based on my experience, I can recommend this pen without hesitation.

San Antonio, TX
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5
I absolutely love this pen. I guess I'm a minimalist, but every aspect of this pen hits the right notes. Even with its striking looks, it's an excellent writer. I'd definitely buy another one...so I did!

Hawthorne, CA
overall: 5 out of 5
overall rating 5 out of 5
quality:
quality rating 5 out of 5
function:
function rating 5 out of 5
style:
style rating 5 out of 5
value:
value value 5 out of 5


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