The main problems with the Bongos for us were the rather eccentric, erratic cooling system, the fuel consumption (we're likely to do a lot of miles in it), and the service intervals. The mid-engine was a bit of a pain, but that paled into insignificance compared with everything else.
We'd like a camper in a small vehicle (due to limited parking space), but are thinking of just keeping it with all the seats (with all the rotating options) to begin with, then adapting according to our needs. The full side conversions are a bit narrow for two, and losing a set of rear seats probably a bit short, but think we can do something simple but creative which combines the best of both worlds.
We're already tempted by them, just want to see a few before we make a decision

There don't seem to be any Japanese importers with Stepwagons locally, with open showrooms we can just visit (ie. without an appointment), so we'll have to look at the few individual vehicles available near us, and/or take a long trip to the south east!