I seldom check bags but at others have said it seems to be hit or miss. Flew ATL-PBI-ATL over the holidays, our bags were just about last at PBI but just about first at ATL. I was pretty amazed at ATL actually, we were sitting near the front of the plane so we got off pretty quickly and by the time we got from B32 to the baggage carousel our bags were already there. I've never had that happen in ATL.