I have one and love it. As long as the blades are sharp it cuts at least as well as a power mower. There is no noise, no smell and no greenhouse gases. It's actually kind of fun because of the way the clippings get sprayed out the back. The clippings also get spread pretty evenly so there are no windrows. This alos means no grass to use as mulch elsewhere. Our yard is fairly small, if you have a large yard it may not be a good option. My boys liked it for a while but got tired of it and my wife won't use it.