This is without a doubt my new favorite pen. The nib is smooth as butter across the page and the size and balance is just right for my hands. It just feel so comfortable to write with this pen. And the fact that it’s a demonstrator and in a gorgeous color combination is just icing on the cake! For the price, I can’t recommend this pen enough. Amazing.

This is my 1st TWSBI, and I immediately bought a 2!: because of how much I loved it. It’s smooth. It doesn’t skip. The amount of ink it holds is amazing. And the colors of the pen are beautiful.

I already owned a transparent TWSBI ECO with Black Trim, but was so impressed with it I decided I wanted a separate one for sketching. I sought a transparent fountain pen with an extra fine nib and some personal touches. This was my selection (after many amazing choices), and I could not have been more pleased. Thank you, Goulet Pens and TWSBI.

I want to love this pen, it's beautiful. I originally ordered with an M nib. I found it too wide so ordered another with an F nib. Unfortunately, the F writes just like the M. I've tried different inks, but still writes like an M nib.

I'd give 4.9/5.0 if I could! This was my first fountain pen and I love that it's engineered so well. This would make a great first pen, and seems like it would withstand a fair amount of wear and tear, though there are only a few accents on the pen that seem to be metal, the rest seems to be plastic. This makes it lighter and hints at a higher level of quality than an average pen, but I doubt it would withstand too high a drop, not that I'm going to try.

For me, the only downside is the pocket clip - it sits very close to the body of the pen, so I have to pinch the clip from the sides and lift it slightly to provide enough clearance to hook it over the lip of my pocket. If they added about 1-2mm more clearance to allow it to be clipped into a pocket one-handed I'd give this a 5/5, but as it stands I can't slide it securely into my pocket with one hand.

For contrast, I also have a Scriveiner EDC (Copper) and its clip has more clearance (about 1-2mm), allowing me to hook the clip over the lip of my pocket with one hand, making it more convenient as an everyday pen.

I have been wanting to pick up a TWSBI for a long time. When I saw the Indigo Blue ECO with Bronze trim: I had to pull the trigger.

Truth is, I am one of those that as a pen seems to be drier than it should be, waning on the amount of ink laid down, I tend to bleed the air out of a cartridge converter.

The TWSBI ECO tends to run dry and I don't dare bleed the air out and leave it for obvious reasons. Also, I will need to tune the nib some as it seems to be on the scratchy side. But for the nib, I may have given it five stars. I may revise it after I have been able to work with the nib some.

My Twsbi eco has exceeded my expectations. The quality and design is amazing also to mention that it is a very nice feel when writing.

You just can't go wrong with a TWSBI Eco. Great writing pens. Fun colors. Big ink capacity.

I just received this pen from Goulet today. First, their packages are always a joy; my grape mini tootsie pop was delicious, and I got to eat it on Halloween! This pen is so lovely. The blue is rich and actually a bit darker in person than in the photos. The bronze accents are a beautiful contrast to the dark blue! My Colorverse eXtreme deep field ink will match perfectly with the pen. So far, I have used a new sample of Robert Oster Caffe Crema in my 1.1mm stub pen, and although I am not in love with the ink color, the pen makes me want to keep writing. I sorely needed this pen and am overjoyed that I bought it!

Nice writer as with all twsbi eco pens, I ordered an EF thinking it would be more like the EF on the 580 but it is not as thin a line. That's not a big problem just pointing that fact out here. I enjoy using the pen.

The TWSBI Eco is a workhorse fountain pen, and this special release really pops the pen's aesthetics without masking any of the functional parts. The matching nib is an especially nice touch, as otherwise there's not much of the bronze trim on the body of the pen (which I prefer to use unposted).

I really like the 1.1 stub nib on this. It levers a good sized line to show the shimmer in the ink I put in the pen

Beautiful pen. Looking forward to using it.
Good packaging & speedy delivery.

This was my first big boy fountain pen; I've gotten hand-me-downs and tried a few of my friends', but never really understood the hype until I got this one, and holy cow, I understand now. This is my new favorite pen, and I only use it for my journal because my actual nightmare is my coworker taking it home, and I wouldn't know what to do. Writing is fun again, and I love getting to see how much ink is inside my pen so it's not a guessing game anymore.

Love this pen! Smooth writing and a reservoir to hold so much ink!

Great quality

Very nice! Light!

TWSBI hasn’t failed me yet! Sometimes I find extra fine nibs too “scratchy” for my liking but this brand has one of the smoothest extra fine nibs in my experience (out of the box) it basically gives you crisper lines while having the feel of a medium nib

My daughter loved the pen, we will be back

Beautiful pen! The nib was nicely tuned and wrote very smoothly right out of the box.

Just getting into fountain pens this great for me to learn on.

I write all the time - for my job, my hobbies, my correspondences. This pen covers all my bases! Besides, it was the pen that got me into fountain pens. Simple and sturdy enough for (heavy-handed) beginners, but has nice features for a great price, which is why I came back to it. Writes smoothly and holds a lot of ink - even writing multiple pages daily, I generally refill only once a week. I love the way that you can see your ink color and level through the clear barrel. There's so many color options that you could find one for anyone! Highly, highly recommend. Thanks Goulet and TWISBI!

This TWSBI ECO fountain pen has a lot going for it. It holds a lot of ink and the ink supply is always visible. The fine nib on this pen writes surprisingly smoothly and the piston filling mechanism works well. This pen has been very reliable and I have yet to experience a skip or hard start with Iroshizuku Tsuki-yo ink. The threaded-on cap seals the pen quite well and I have not noticed any evaporation or leakage of the ink supply. The TWSBI ECO does everything a good pen should do at an attainable price.

I ordered the indigo blue color with a medium nib and it looks so pretty, I love it. It writes and shows off my shimmer ink beautifully. Writing with it is super satisfying. Thank you!

As Always TWSBI is the way to go for new pen collectors

I love this pen - the twsbi line of pens are my favorites.