I love mine it will need two of you to unfold it & with practise it does get easier. The more extras you have with it the better like fridge floor heater etc although folk get by ok without. Obviously check for damp as you would an ordinary caravan but these things are pretty easy to repair in a lot of instances just parts can be tricky so make sure all the legs wind down ok & work as they aren't easy to source.
I set up a forum about these as I weren't finding out much about them online & there's loads that we've managed to find out about them.