The reason Why I only gave it three stars for installing is it took me about 30 minutes to get it on one wheel. now it was new and hadn't been broken in yet so it might be easier this year we will see. I bought this last fall looking for something that wouldn't scratch our newly pave driveway I live in Wisconsin and in 2019 we go about 1 1/2 feet of snow and in past years the problem would be traction this year it was weather the mower had enough power to push the snow not traction. in fact I was pulling a trailer full of wood up the driveway when it was dry and the load was so heavy that the mower couldn't pull it up the driveway. I didn't lose traction, though, (which would have happened in years past) but it instead sheered my flywheel key.All Around a fantastic product. Well worth the money!