We usually like Disney transportation. We don't mind waiting a bit for a bus, but the wait for a bus back to MGM after an afternoon Braves game last spring was awful!! Way too many people for the number of buses. I think we waited over an hour. Now, there was a cheer competition going on at the same time and that probably was a large part of the problem.
The bus to the game wasn't too bad, but it was packed. My advice would be to see if there are any other events going on at WWS and if there are, take a taxi, at least on the way home. We'd been told by another family that the a taxi back to CSR cost them under $10. By the time we decided to give up on the bus, the taxis were gone.
Otherwise, we had a great time at the game.