The Comanche is made in Argentina, they are all steel, no pot metal. They are a bit rough in finish and sort of clunky looking, especially the thick top strap and tall sights but they are a decent gun for the money.
I've heard a lot of negatives on Rossi but my own 6" barreled stainless .357 is impressively accurate, has a good trigger in double action and excellent in single action and has been doing good work for six or eight years now without a hitch. From a solid rest it will keep it's favorite load inside two inches at fifty yards and that is way better than I can do with any gun without a rest.
Like most gun buffs I look at handguns and think "that is nice", or "I'd really like to have one of those", but then I stop and think "but I have my Rossi .357 and what more do I need?" Of course I also have an S&W 22A and an AMT .22 rim mag and a couple of compact carry guns but the 6" .357 Rossi fills its' niche very well.