I hired one for a month.They seem to be quite good fun,but I read a lot about the different types of vibration.....simpley speaking ,there is up and down or oscillating.Both are ''good '' for different reasons.I got somewhat confused by all their marvelous claims,especially when reading research by someone in Australia who claimed that most of the ones on the market are totally useless....and its all a money making scam seemingly...I will try and find this for you.The man in question has developed his own vibration plate-and of course it is highly expensive...because according to him -it is made properly!
Another thing to ponder is -for what purpose do I want it for?For me it was medical...ie would it help my joints-as I had just been diagnosed with Rheumatoid Arthritis.Walking was agony,vibrating may have been beneficial.Honestly dont know really.