Well, we've had 3 nights away in Eric. Really loving our smaller caravan. (Lost our way and went too big with last one).
What we've learnt:
Don't cook fish inside first night!
Buy better tent pegs for awning.
Memory foam mattress topper needed (purchased no on its way) - bed was nice and firm (better than too soft) but my dodgy ol' hips need a bit more 
Waste water container needs to be replaced with one one wheels...
Swopped a few items around in overheads.
Looking forward to trip No.2 end of the month 