Just a couple of things you may notice when you open it up again
The windows may have a 'milky' appearance - this clears and is nothing to worry about.
The folded pvc may slightly stick together if it's been left a while.
If there is a musty smell it will go away once the Dandy's been aired.
Ours seems to go away wet a lot this summer but it's no problem for the Dandy, just us as we end up soaked and one of us always gets very wet when we drop the back wall as the water that's gathered on the roof tips off ..... any advice to stop this would be very welcome.