I have one (but then you already knew that). It's a great unit. Lives up to the hype (and specs). H2 or H4? depends on your needs. The H2 specifically suited my needs. I have recorded both rehearsals and parts of live gigs with it and results were as good as could be expected under those conditions (but truthfully, not a lot better than my Hi_Def Camcorder. Super sensitive so it's important to use the right mode to reject background noise.

My assessment: probably couldn't get anything even close to that quality (sound wise) for even twice the money. If you have any specific questions, ask away. I also have the Roland Sonic Cell (great sound but a little bit cumbersome - depends on how you intend to use it) and the Nord C1 combo organ (closest thing to a B3 at 33lbs but makes a lousy controller for an external module). I only mention this because one is new and the other is kind of rare on this board (in case someone had/has questions).

chas