Well, from how far away. ALL of the current reproductions have innacuracies. And construction variations. Even Colt. There are small differences in hands, bolts, triggers, stuff basically, that tend to keep us gun plumbers busy.
The guns that were manufactured in the last 5 - 6 years have achieved a fair level of standardization. While not necessarily interchangeable within manufacture, we're down to minimal fitting of Uberti parts.
Pietta, on the other hand is a different story. When EMF contracted with Pietta for the Great Western II, one of the requirements imposed, was a half dozen guns could be taken apart and the parts thrown in a box. Those parts could be drawn at random and reassembled into a working SA. Pietta met that requirement. Dimensionally, Pietta is very very close to a 2d Gen. Overall, I feel Pietta built guns are the best value for dollar of current manufacturers. It's a shame Pietta doesn't make conversions
Coffinmaker
PS: If you choose to "ride the pony," you'll be disappointed to learn they require the same ministrations as everyone else, to be really user friendly.