I also wish I could use more than one card in my system so I have more DSP power for effects. It's what I depend on nowadays for good sounds. Editing sounds is straightforward, but I would recommend a good background in electronic music. The manual is mediocre. Effects are good and as easy to use as the patches.
Expansion is from new software.
I downloaded version 2 last night and will be playing with that tonight. MIDI is completely configurable - though you need a computer sequencer and MIDI port to utilize the board. I think this is the only real drawback of this sonicly sweet board. I get all the EM sounds, scales, plus with my sampler and this thing being able to playback samples - its a perfect match up. They should look for a mirror.