I collected them yesterday so they are not in use yet. I have however been using both Paynes and Bee Hive Supplies poly's for the past 3 years and prefer the design of Maisemore's for the following reasons.
No moulding depressions, better floor design (no lugs, smaller landing board), deep hand holds on sides, and importantly cost.
The only concerns I have is the entrance block which I do not think will last very long, and the frame supports which could be simply removed and replaced with either metal or plastic runners.
They are supplied with screws for assembly but I will be using UHU glue on mine.
I will try to post some photographs later but seem to have problems with the forum at the moment.