Ive had the sauna for a bit over a month and have been using regularly. Assembly was pretty straightforward with the only hiccup being the assembly of the bench. Not sure why it was recommended to build the bench after the panels were up. It would have been easier to put it together prior to the last panel going up. One drawback has been the amount of time it takes for the sauna to reach 140 degrees. Right now it takes about 90 mins on average and the highest temperature that Ive been able to reach has been 142 degrees. Also, there is no way that 4 adults will be able to comfortably fit in this sauna. Overall, Im satisfied with the product.