Great upgrade to our old Miami. to be able to control by an app on the phone is a great idea. Thinner walls were at first a concern but amazed how well they keep the heat in . If you fill it to the minimum water level and two adults and a child get in the water overflows when the bubbles are turned on. Could do with been a little taller. There was nothing in the items supplied to blow up the top cover so had to use a blow up bed pump. Say all the above it's still a great upgrade which is why I have still given it 5 stars.