I have two TWSBI pens, and so far so good. (but I've only had them for 1.5 years). As for inks, I like really black inks. I've tried Noodlers, Herbin Perle Noi

I have two TWSBI pens, and so far so good. (but I've only had them for 1.5 years). As for inks, I like really black inks. I've tried Noodlers, Herbin Perle Noir, but they turned out greyish on even on premium Rhodia No 18 pads. Then I found Rohrer & Klinger's Leipziger Schwarz, which is a very dark black ink with a dark blue tint. It's my favorite ink to this day.