It's my right as an American to complain about Dave Grohl! It is annoying as hell that he's now the spokeman for anything punk or rock n roll, but yeah, aside from that I am beyond stoked for this set. Especially since part 3 came and went really fast and the bootleg I eventually found was unwatchable quality-wise.
Anyway, any commentary track is better than none...but I guess they couldn't get Alice Bag? Lee Ving? Ron Reyes? Chuck Dukowski? any number of more qualified poeople to do it? I think the foo fighters OTHER guitar player would be more qualified....But I guess if they sell more with Dave's track, more power to 'em