Band of Brothers is definitely a great release. Pretty much a must have. Yes, there is a lot of grain, especially in the really dark scenes. It's because it's very detailed and was shot on film. If they smooth out the grain, that means they're also smoothing out detail, so believe me, it's a good thing. The sound is amazing and the packaging is the best I've seen yet. It's a metal tin, but it's shaped well to fit in on a DVD rack, like the size of 5 blu rays next to each other.
Anyone else pick this up, or Firefly?
Firefly is averagish, some scenes look great, some so-so. It's probably the best that can be done with the show. If you're a fan, I'd say go ahead and buy it. Don't buy it to try and make some sort of point to the studios though, it's not coming back.