As a big fan of live Rush albums/bootlegs, it was an amazing treat to FINALLY get the whole Hammersmith Odeon AFTK show, complete with a killer version of "2112", an AFTK-Tour release of "Closer To The Heart", and getting Neil's drum solo back at the end of the show. The covers are pretty nice, too, especially DT's "Xanadu", which is pretty...immaculate. Magini really rocks out on that one, in a way that he doesn't on recent DT albums. I hope doing that cover helps them with their sound on their next album.
As for the 2112 40th Anniversary edition - the covers are OK. I haven't listened to them in a long while, but I think Steven Wilson's "The Twilight Zone" was a stand-out for me. The curiosity of the bunch is the live version of "The Twilight Zone", which is an obvious C-grade bootleg, but considering the piece was only played live a handful of times (less than 5 I believe), it's a unique piece of Rush history to have on an official release.
I'm just really hoping they do a Hemispheres 40th Anniversary set this year. Can you imagine some exciting covers on that? I'd love to hear a band like Tiles or Enchant cover on of those songs, and getting a full live Hemispheres show would be nice (not that there aren't several complete soundboard boots out there already).
-Marc.