I've used my SS Dragonfly for the last yr... bought on Aug 20, 2001... used it on boxes till Nov 16th, and it's cut most things easily.
I have ended up with a convex grind(lot of work with the whites from spyderco, and lots of patience), and love it. I steel about every couple weeks, and strop every few days of use, haven't touched a stone for 6 weeks. I used it for 2 months this summer without so much as a stone, and it needed the stones when I got back.
I'm shipping mine off this week to Normark, to get a rig built for it. Getting a keychain rig, but a bit tighter, and wearing as a neck rig. Only gonna cost me about $15 from him, and shipping to get to him.
The Spyderco Dragonfly is the best choices in the sub 3" range. I bought it because it has a secure grip(even with SS), the weight is there for such a small model(I've had my Millie for about 1.5months, everything is small now), and the ATS-55 holds a sweet edge(at least with convex).
You will not be dissapointed.