I like the feel, style, and function of these pens, and use them daily. Unfortunately, they have one design flaw; The plastic "bump" where the wire clip anchors itself to the pen body has broken in the same place on 3 different pens. It appears that the two small insert holes are a weak point which eventually fracture/break from repetitive use. I don't clip these pens to anything other than my shirt pocket, but apparently, even this slight stress is too much for this pen to handle. Each pen has lasted about 4-5 months before the plastic snaps. I have 3 broken, clipless Tombows rolling around in my desk drawer now and one "Clip attached" Tombow Airpress left in my arsenal. Regrettably I won't be buying anymore unless the flaw is corrected or the price is lowered.

I wouldn't recommend this pen for lefties, smears hand when writing as the ink isn't quick dry. I find the pumping mechanism inconsistent and occasionally I get splodges of ink. If you are after a pressurised ink pen to write on any angle with the added bonus of quick dry ink I highly recommend Uni-Ball Power Tank pens.

Good while it lasted. Not sure if it's just a manufacturing issue, but what happened on mine is the black plastic tip just came off one day.

Love this pen, compact but powerful and great design

My third one. I plan to give others as gifts. These pens are perfection. The action is smooth and satisfying. The ink flows smoothly. And the shape and texture are pleasing in the hand. Not to mention they can write overhead, which doesn’t mean much to me but some people must do it. Grab some!