I bought this chair because I have knee surgery coming up. I loved the chair at first...until it stopped working! Now the chair is useless to me! I have emailed Wayfair several times. The manufacturer is not responding at all! I even purchased the additional 3 yr. warranty. My last email from Wayfair said they were happy that my issue was resolved. What? I haven't even heard from anyone! My surgery is in 2 1/2 weeks. Please Wayfair, either get it fixed or replace it! I'm 72 yrs. old and live alone.