Hmmmm, so far in the short demo I gave it, I find that as a piano/bass/drum unit - it's great. The arranger is very "preset", but they do give you the option of "thinning" out the band from full to combo to bass & drums only. I like that.
As for a right hand solo piece, I think you're fine. The acoustic sounds are very nice.....haven't dug into the Rhodes and Wurlies yet, Ian ..... maybe later tonight.

It's an interesting little board...a great backup to keep for emergencies.