I have a home one (Cintura Sports), I find it is actually very good for legs and arms, not sure about my core though. I use it for 15 mins a day and holding some of the positions on it is excellent for building up arm and back strength. I can feel it on my legs too. I wonder if I have too much fat on my belly for it to be efficient there. Am figuring 15 mins on this then a 15 minute power work out using a great little 12 15minute work outs. I m going to do some of the stretches on the plate. I love the plate even if it is just going to help me get rid of my cellulite and relax me a bit. For $(no pound sign) 99 you cant really go wrong.