I'm a huge fan. I've seen 'em twice, and was lucky enough to briefly meet Matt once. I'm a fan of Sleep also.
Anyway, I picked up the new disk and really like it. There's a couple meaty breakdowns, which you don't hear a lot of in their previous work. Even a couple of slowish songs. And the faster ones are heavier and faster, if that was even possible lol. Overall, a total success. Best album I've heard in 2010 so far IMO.