IMO played OK, but very 'robotic'. You don't have to play a song exactly how it's written. In fact it's more entertaining if you add your own little touch. Not entirely his fault, using a backing track makes this more difficult, as you need to follow, rather than lead. Using an MP3 backing is 'set in stone', and you have very little options, like adding or holding right hand notes, variations, fill-in's, etc.

Also he needs to vary the right hand sound. To use just one voice throughout an entire song makes it rather boring.

Good playing, just 'improvise' a bit, add some variations and voices and it becomes a much better performance.