Several in our group of Cowboy Action have Uberti's. They seem to be well built, but they are older. The issue may be with new ones. IDK
The Ruger Vaquero is a Colt clone, Uberti is another clone. The 2 are comparable in price. 1 is American company and a lifetime warranty.
I have 1 Vaquero. I much prefer the Blackhawk, because of the ladger frame and adjustable sights. I like my sights regulated to where I aim.
All 6 shoot where I want them.
My buddy has 5 Pietta, has had them for years and many rounds, with never a problem.
Any maker of anything can let a lemon slip through. The same person getting 2 in a row is bad ju-ju.