Not lots of options, so it's hard to get lost. 30 Drum patterns 50 combo patches 200 preset patches. The manual doesn't cover the preset patches a bit. It talks about editing combos but you'd have to know what sources you liked first.
Sounds are old and funky some are great, some suck.
Since the 200 presets are in one bank, you have to hard code which 100 you want to be addressed by midi. I haven't found an editor yet. I haven't even found anyone whos ever seen one of these before. Don't plan on anything but from the front panel for editing. The drums don't seem to send time down the cable, so I can't call it a controller.