We bought one last year, the Chef 2, and we wouldn't want to be without it now. It was recommended by other van owning relatives. really great piece of kit. Made breakfast for 4, the full hog without problems. Cleaning? I just wash it outside of the van, let it dry and then put on very little oil with kitchen paper.
Relatives tell me that a friend of theirs makes a full Sunday dinner in it. Have to get in touch with them
We got the Autogas bottles built in with a gas connection on the outside of the van on the awning side. Brilliant. You won't be disappointed.