I also put it on the highest setting. I did that because I figured might as well really shake things up. Go big or go home! It didn't cause me pain, but I still didn't like it. Does anyone remember those exercise machines that had a wide belt you put around your waist or butt and while you just stood there it shook the bejeebers out of you? My mom had one when I was a teenager. I think the idea was it was supposed to shake the fat off of you ... so funny. My mom was skinny as a rail already... Anyway, the vibration made your skin itch like crazy. That's what the Afflovest reminded me of... because on a high setting for 30 minutes the vibration was uncomfortable in that way. I bought an inversion table and that's what I like. Sometimes it feels like my head might explode but most of the time hanging nearly upside down is kinda nice. Makes my back feel better and helps drain the respiratory system at the same time. The only trouble with the inversion table is I always start thinking "what if I can't get off of this thing? what if I die here hanging upside down? .. .. " 🙂