I have a stainless steel dragonfly. (C28P) It's a standard lock back. The overall fit and finish is very good. Like all of the steel-handled spydercos, it just feels solid. The FRN handles are OK, but don't give the same solid feel. The pivot opens and closes smoothly, and the lock still snaps shut with authority after several years of carry. There are knives with smoother pivots, but they're also several times the price. Ergonomics are good. I usually have my index finger on the choil, two more fingers solidly locked on the handle. The thumb rest is good, and you can move your thumb or index finger onto the spine for finer cuts. The blade shape is very useful and the flat grind reduces cutting resistance.
This is a great little utility knife, and looks quite elegant in steel. It fits nicely in the watch pocket of my jeans, or tucked in the waist band. The best thing is that the 2.5" blade is OK just about anywhere - post office, government facilities, etc. I'd definitely buy another one if I lost my current Dragonfly, so I highly recommend it.