I have had this spa going on 4 years come Feb. 2018.  The good and the bad.  Motor and jets have worked flawlessly so far and I am very happy with the tub material itself.  Still looks like new on the outside.  The cover has held up well.  the first problem was the temperature sensor which blew out about a year ago.  Found one at a local spa shop and good to go.  I noticed water around perimeter of tub the other day and located the problem as the waterfall valve which I never use was leaking into compartment behind access cover.  I think I will remove the valve completely and place a waterproof electrical cover over the hole.   I use this spa practically everyday and have enjoyed it.  Nice size and the price was right.  Trouble free for best part of 2 years.  I would recommend this product,  knowing some repairs may be on the horizon due to some inferior parts.