Update : 3 months later it's working great ! Love this product . Working well for me . There were alot of bad reviews but all I can say is so far its worked well. It took about 20 mins to set up very easy. It took 30 hours to get water to temp 104 from starting temp 57. One thing is it shuts off the bubbles after 20 mins. To restart quickly unplug and plug back in. Using it in 45 degree weather it loses warmth fairly quickly. The bubbles are great and it has been everything I expected for the price. One thing I had a very difficult time figuring out how to empty . I finally deflated it. I needed to change out the water because my spa tabs were delayed. I have had a coleman and this is a little  cheaper quality but easier to set up. For the price I am very happy