The guy did a cool cover. Ok, his playing is a bit too busy and there's a couple of timing issues, but it's fine. His MP impersonation though... Ridiculous. He dressed like MP, the way he looks is similar, he even does the same gestures. Of course, the drum set is also the same. Portnoy is an inspiration for a lot of drummers, but stop mimicking the guy! You're not and will never be him. Find your own way!
I think there was more dynamics and a better snare sound than the original one. Nothing against MM's playing but his style is like playing every note at the same volume when it sounds a bit like machine. This guy has really MP style in his playing but it fits well for this song and I think that's the way Mangini should play it live.
And yeah, I haven't ever understood MM's snare sound, he definitely needs more low for his snare.
Yes, the drums sound more raw and natural in this cover. Thing is, such drum sound would disappear in such a busy mix. It's production and the approach taken in tracking and mixing stages. It has nothing to do with MM's playing, which can be groovy and dynamic when the music requires it. Please people, stop that "Mangini sounds like a machine" nonsense.