First time session was good. The instructions said to plug in the power in the front but it was on the side. Also instructions said to insert plug until you hear a snap but there was no snap or any sound. Have not had time to evaluate the rest of the instructions.
From the first time I've used it I feel better. It's only been a week, but my hip and knee pain are gone for the first time in two years! Feel great during the day and sleep better at night. I'm telling everyone about it!