For his age I have to say: respect If he wouldn't be that young I would say: really sloppy with a lot of mistakes. Thing is... I would never pay any more attention to that kid yet because he plays really sloppy. If he would be at my age, he wouldn't get 10% of the views he has now and that's sad. There are 100000 better guitarists on Youtube but nobody cares about them because they are older. Those kids are good view magnets. You only have to be young and with a bit of guitar skills. Thats all you need to earn attention because every will say then: OMG, he's just five years old and play guitar like 100000 of other guys! That's amazing! If you would only hear his playing withoit knowing him, you wouldn't pay any attention to him.