Well constructed. Delivery was late by one day preventing us from using it that weekend and had company coming so was disappointed. The delivery people did bring it around back for us at no charge which was appreciated. Nice looking.  Have had no problems with it and have used for 6 months now.  Live in the Toronto area and used through the winter.  Only opened half the foldable top to use for my wife and myself during winter months.  This was comparably a mild winter for Canada! Top temperature is 104 F.  Pool lost approx 1 degree F each half hour with only half the top off.  It's fine for a 1/2 hour to 1 hour use which I'm sure is fine for most people.  Monthly cost to heat is minimal. Very good deal for the price.