i really like this spa but the rim needs improvement or an attachment for comfort [SEP] this spa would have been given stars had the rim not been so sharp and edge on the back of my legs i used a towel to make it more comfortable but a rubber slip on attachment would be the perfect answer to make this a star spa after an hour it automatically shut off not sure for spa safety or mine lol but it felt so good i just let it run and had planned on turning it off then anyway i think for dry feet that might be too long as now i have a few sensitive areas that i worked on the rollers too well i looked at other units but hair curler roller systems just did not look at all comfortable or practical definitely buy this spa