Sorry guys i didnt see the replys ..

I didnt have a great deal to lose, just baby belly , in regards to the knees yes it did hurt at first, the way its designed it doesnt work the way it shows on the tv without it being uncomfortable so what you do it turn the little knee parts around so then you sit in comfortable you dont slip or anything, you can also add in wash clothes ect to the knee area if you need extra comfort, so if you have knee probs i dont know jhow it will be for you ifkwim, i didnt hurt me , after i turned the things around mote comfortable but the way they say to it it i found uncomfortable ....