In one of his interviews he says hes only sleeping about 3 Hours, because he has going so much on in his head. Everyone knows that this is absolutely not healthy, and since he is not becoming this in normal state (like sleeping 6-8 hours a night) he will just become worse...^His playing is in that video is pathetic and extremely unprofessional to be honest. He's struggling with some of the most basic leads like the intro in Hate Me and just can't play the harder solos like Bodom After Midnight. Compare that with the earlier videos posted above and its night and day. Its clear he doesn't practice anymore and isn't really interested in being there.
Daniel's playing is tight though, he was a good addition and should have taken over most of the leads.
Sad to see this coming in a few years!