I'm going to steal some of Ala Dan's post because I am lazy.
Definitely positive experiences:
Smith & Wesson model's: 10, 19, 27, 36, and 586.
Colt McCormic Commander Race gun.
Ruger model's: Speed-Six, Blackhawk, MK-II, 22/45, and P95.
Beretta model: 92fs and 21A...