I guess there isn't much to blab about, but that's why I like it. Pro sounds and effects in a 24 lb board with weighted keys. No menus or anything to worry about. It's about as close as you can get to a guitar player's experience of just walking in with your instrument in one hand, then plugging in a playing.
Its the same thing that attracted me to the SV1. Yes there are some flaws, the controls should be on top to minimize space, and no internal power supply, but overall this is just what I'm looking for. I even love the 64 key layout. The only thing I miss with 61 keys is the low Bb because I sing a lot of songs in that key.
I've tried (really tried) several times to get use to an unweighted action so I can save my back but I never could. This is only 10 lbs lighter than my SV1, but I think it will be easier to handle because of the shape. (The SV1 looks cool, but the pill shape offers nothing to grab on to.) Plus, at $1000 I don't feel bad about only protecting it with a gig bag.