Bought this item for a friend for outside her static caravan.  My husband put it together and his view is that it wasn’t as sturdy as expected and was quite disappointed with the base as he said that it was quite flimsy.  I noticed that the seat when lifted rubbed against the arms so hope that this will not interfere with the supposed watertight objective and that people can sit on it without the top collapsing.  I would hope that if this is the case then the two year guarantee will come into play.