I have only one Uberti, a Walker, and I got no problems with it. But I got a half dzn Pietta 1860's and '51s and I like them all. (Maybe I got lucky, but I haven't had a lemon in the pack of em.)
I did get a Pietta London Navy that had a crooked mounted triggerguard, but somebody had either damaged it in shipping or it was a return, but Cabelas promptly sent me a new one, no questions. (Back in Feb of this year)
I don't think it was Pietta's fault that it was damaged.