All good advice Listen to the man
As for sounding cheesy I don't think so The bass and drums are good and with live piano it'll be better
I find it easier and more fun to play with a rhythm section But if you can't get real players then this is a good alternative

Consider doing a couple of tracks solo (i.e. no backing) Make sure you practice with the tracks at home, especially as its the first time
Good luck and enjoy
Tim