The only one I own is a Colt Open Top repro made by Uberti, imported by Cimmaron.
I just liked the style, so I bought one. Two actually. One near new in 44 sp and kept that one. The other was NIB, nickle and in '44Colt' and I resold that one.
A couple of what I considered minor issues that I fixed and I really like the revolver. Others may not have been so accepting of the issues especially had the gun been a new gun purchase.
I've fixed a few SAA Uberti's over the years for people.Nothing major,,broken springs usually. Timing issues,,I do remember a broken hammer spur on one. Guy swore he didn't drop it on the garage floor practicing fast draw!.
Worn out/damaged hands,,usually the latter from improper clinder disassemble and reassembly.
Sometimes they show up with soft parts or thin case hardening and the trigger, hammer sear notches wear over rather quickly.
Just a QC thing and you see that with most any of the Italian or Spanish repro makers. Some more than others.
Their cylinders on the SAA used to fit the Colt SAA if you turned about .020" off the Uberti. The ratchet was the same as the colt as was the length and the bushing.
The locking notches were cut deep on the Uberti mgf so that when you took the extra mat'l off the dia, the notches ended up just the right depth for the Colt.
I still have one myself on a Bisley in 44-40.
The cylinders were cheap and nicely made. I liked them better than the Christy Gun Works replacements. Colts were always expensive and harder to get.
Now you wouldn't think about putting anything but a period original on a 1st Generation Colt, but that was then.
Uberti sold it's operation to Beretta a few years back.
Some say the overall quality of their products has lessened since the takeover by Beretta,,others say not so.
I don't know personally. I've always been of the opinion that it's best to judge these foreign made repro firearms on an individual basis. They can really run hot and cold in quality sometimes.