I just got a new insert installed. There is gap on top between the surround and drywall. I plan to cover it with tile and also have the tile go down the sides. The bottom however, I think I might try to get some metal fabbed to make it look more uniform. Would tile look good on the bottom? I think it might lead to a 'floating' look for the insert, may or may not be good. Any suggestions? I' sure this has come up before. Pic below.