I started having arthiritis in my knee & hip. I have a cleaning service & requires me to do lots of stairs. Wanted something to help relieve the pain. This spa is great. It's perfect. I use it mostly myself. My husband doesn't care to use it, which is fine with me. Daughter uses it occasionally. After a day of work & stairs, I get it in it at least 30 minutes a day. Can tell a difference. Easy to maintain. I use bromine granules. Not expensive to run either. Highly recommend. Delivery guys were great also.