I have these tires and love them! They last a very long time and are awesome in sticky fields and mudholes. the only time i complain about them is in the rain. If the roads are really wet its hard to get traction. If you give it just a little too much gas they break loose. But mine arent siped. they tols me when i bought them from discount tire that they would sipe them for free. I just never have taken the time to do it. They arent bad enough to where im scared to drive in the rain or anything. but yes these tires are pretty nice. they are probably one of the quieter mus terrain tires also. My next set will be the same!