It's good, got my first one last week. It does get hot, really hot, but it's best interface I have ever heard. Going to add some heat sinks to the chips, that will help. Perfect timing with Pro Tools 9.
I'm super close to making an iMac (or new/next MBP if I somehow wait long enough) + Apogee purchase to get my studio's foundation laid.
I was in love with the original Ensemble (I've been planning this for a while), then came the Symphony (expensive but I may just "do it"), then came Thunderbolt.
Either Apogee announces the TB module for Symphony (ideally with a few mic preamps AND a few instrument in's) or Ensemble 2 with Thunder......and I'm IN.
Would love to figure put how to get a deal on the combined purchase...maybe via Small Business...hmm.