A buddy brought one to a poker game at my house (without ammo, I should add). It was a .454 model, with a relatively short barrel, seems like it was 4 1/2", but it was probably 5", I can't remember.
Needless to say, we didn't do any accuracy testing in the basement, but I checked it out and it was pretty cool. I've never handled a Freedom Arms Casull so I can't compare the two, but compared to my .44s this thing seemed rock solid. Fit and finish were very good. The single best word I can use to describe it is "solid," which is probably to be expected. Interestingly, the cylinder doesn't swing out to load/unload, instead you feed the rounds one-by-one like some cowboy guns. (Actually, I think he said there was a way to swing the cylinder out, but it wasn't obvious to me.)
I realize this is a borderline useless post, but it's the best I can do.