Overall, very happy with this hot tub.  Easy delivery, setup and use.  I've got the 110v version outside in Iowa, heating took almost two days to get up to 102 temp.  Its been holding temp well, but runs almost constantly.  I expect it will run less as the outside air temp goes up.  I may end up buying the 240v pump/heater and installing that if it kills my electric bill trying to keep it warm.  The waterfall feature is pretty pointless.  Its noisy and we don't use it.  Jets are just powerful enough to have some pressure.  Several of them can be turned off, this helps the other jets have more pressure, since its not pushing water through all of the jets, just some of them.  

These are a nice alternative to the $7000+ Jacuzzi tubs, would recommend and purchase again.