I had a stainless 44, 4-inch that I put a lot of rounds through. It was very reliable, other than one charge hole that was out of time. I think with Taurus that it's very important to dry fire the weapon 12-18 times before you purchase it. The quality control doesn't seem to be on par with the likes of S&W.
It seems to be hit or miss with Taurus revolvers. Either you get a great one, or you get a slug. I would highly suggest that you get the gun back to Taurus for service, and just bear it out. Your service experience may be great, or it may be terrible. Either way, it needs to be addressed by the company.