Some are good, some are lousy as hell. Editing's not too bad, really, provided you know what makes the sounds tick. Manual is excellent. It's wierd and all I can say is it's a bit loud and springy, not like my Juno-60's action, which is more like an organ.
Delays are kind of easy to make.
Does have stereo panning abilities, which are nice. You can expand these pretty nicely. That's some wild stuff. This thing is MIDI-everything. Has velocity and aftertouch.