If I'm just messing around I don't have a problem with it, but still usually stick to new stuff. If I'm sighting in a scope or something I always stay with virgin brass and consistent brands but I'm sure most of the reman stuff is fine if done by a reliable source.
Just ordered 500 rnds of .40 from Freedom Munitions. Have read and heard good things. Will report how they work out. Oh cost me $117 for the 500. Free shipping.