Very Great!!!

Yeah I agree it's a very bold achievement, though it can be a bit draining that it's 110mph right through (almost). Portnoy's drumming is glorious and he's certainly driving the music (he also directed the film). Admittedly, people who are not into hard prog or speed metal aren't likely to get much out of this but as an old Yes/Crim/Purple fan I'm awed too.