I have had other good fountain pens but this is the best EF nib pen I have ever used. Holds a lot of ink on a vacuum pull and feels solid in the hand when posted.
I love the clear demonstrator style, and the filling mechanism is great. It's not the greatest writer, though. I got a $2 WingSung off of ebay that writes much better. I've tried Waterman Intense Black and Noodler's Black, both dispense pretty roughly and sparsely with this pen (light lines and skips). I've cleaned the pen thoroughly a couple of times.
My third Twsbi ECO. It writes well and is good looking. Paired it with a shimmering ink. No clogging.
This is my second broad nib pen and I like it better than the Kaweco sport broad nib.
Thank you for the good service and the fast shipping too.
Pleasure to write and draw with. Ink flows like butter. With the broad nib I could achieve 4 different line weights. Great for my architectural and design sketches . Convenient built in piston that is easy to recharge and mess free. Nice built, and economic . I don’t have to worry about leaving behind a very expensive pen after my meetings.
I prefer fine or extra fine nibs, but decided to try something new with this stub nib TWSBI Eco. I’m loving it! The Eco is a great price and so easy to use. I love that it holds so much ink, reducing refills. This is my second Eco and I’m struggling to decide if I like them better than my favorite Lamy Safari pens. Thank you for encouraging me to try this nib.