I have no personal experience with Ruger automatics. However, when I sold guns I sure sold a ton of them, and never had one come back. I have 7 Ruger revolvers, SA and DA, and love them all. Built like tanks, accurate, and fun to shoot. I have traded two in the past, but both times, I traded for another Ruger.
Plus, everone I know that has ever had anything to do with Ruger's Customer Service has had a good experience.
One of our State Troopers dropped his Ruger auto out of the window of his car while firing at another vehicle while doing 90+mph. After bouncing and tumbling and finally slidding to a stop, the gun had part of the rear sight chipped off, a slight gash in the grip were it hit the corner of something hard and sharp, and a scratch on the muzzle end of the slide. The gun still functioned flawlessly. That's the only Ruger story I personally know, but it had a happy ending. So I would tend to wonder about who ever told you they were not any good. My experience has always been the opposite.