I've had my LC9 only a few weeks. Shot 100 through it with zero problems. I want to put another 200 or so just to be sure. Seems like a nicely made gun, and was spot-on accurate @ 5yds.
I've had an SR40c for over a year. Probably 700+ rounds through it. Runs like a machine!! Very, very accurate! The only issues it ever had were solely due to my getting used to the reloading press. Once I did, it ran 250 on one trip to the range w/o a hiccup. The only possible knock is that it seems a bit big for CC.
In general, Ruger makes high quality guns for competitive prices. Not a giveaway, but not out of reach for a working person. I can't speak to the factory service, because nothing I bought ever had to go back.