Any of the newly-manufactured replicas are well-made guns. However, a few caveats.
Armi San marco (ASM) made guns for Cimarron about 10 years ago. They had quality-control issues. Basically many parts were sloppily made/fitted, and Cimarron ended up dumping the ASM guns and going with the Uberti gun, which is of a much better quality (and consistant quality).
All the guns today are made either by Uberti or S & W.
The S & W is about twice as expensive as the Uberti gun, and can only fire .45 S & W schofield ammo. The Uberti guns can fire .45 colt or .45 scofield, kind of like the .357 magnum/.38 special interchangability.
Thw Uberti uses a fixed firing pin integrally forged with the hammer. The S & W uses a frame-mounted firing pin.
Both guns are very tightly fitted examples of engineering. I wouldn't recommend extended shooting of blackpowder ammo or heavy loads, but factory spec. .45 colt would do them no undue harm. High-end (1000 fps +) loads are a little stout for the hinged-frame design.
I have owned an ASM/Cimarron 5" 'Wells Fargo' revolver and a Uberti 7" revolver. Aside from the problems I had with the ASM guns' firing pin and sloppy hammer/sear fit, both were accurate guns. I spent a lot of time fixing the various problems with the ASM gun, and finally sold it for quite a bit less then I paid for it. The Uberti gun is a joy, but I don't really want to try and find a matching partner for it (for SASS matches). Other then having to make sure I keep it clean (the barrel/cylinder gap is very sensitive to fouling) I think it is an excellent gun, although a little pricey compared to a SAA copy. The S & W price is way too high for a poor boy like me.