I have a Ruger P345 and to be honest, I've come very close to trading it in for a S&W 1991SC.
I don't mind the size at all, but I don't like the trigger and sights, and from the first time I bought it have been looking to replace both of those. I've also only put about 250 rnds though it (with occasional wipe down and barrel cleaning - no slide removal) and it's already started jamming with the slide back.
Cons: Poor aiming, poor trigger feel, poor reliability
Pros: Price ($400 new)
The only thing stopping me is my friends telling me to "never sell a gun" ... so I'm just saving some money for it's replacement. I really have no clue why it was Guns & Ammo's 2004 Gun of the Year.