I have one and like it a lot, but it needs some maintenance somewhere right now. Probably the switch. Mine is about a year old, came from FT I think.
I liked the stiff spring and recessed/flush button. Now, however, I have to hit the button REALLY hard, dead center to get it to fire properly.
On a whim, I ordered a brass (probably plated)/stainless steel "Kepler Iron Man III" (but it says Maraxus on the rim of the top cap, heh) from FT. Very similar to the first Maraxus.