Taurus has an unlimited lifetime repair policy, and are the only company that offers this (
afaik). Of course, in 20+ years I have only ever needed one firearm to be repaired - a Beretta.
I agree with those who say to go to some shops and "try them on". I have a large fram, hi-cap 45 that I absolutely hate because it doesn't fit my hand well. Feel is very important.
Edit: Around 1997, Taurus secured all rights to the Rossi brand of handguns. They are still sold as Rossi, but are manufactured by Taurus. As such, Rossi pistols made after 1997 qualify for the Taurus lifetime repair policy.
This doesn't really effect you, I guess, as all Rossi handguns are revolvers.