BEWARE - two of four stumps were not properly ground. They tried covering one with chips and a pile of cut logs and covered the other with chips and placed a huge round on top. Returned with an attitude and excuses! Mild, acceptable marks in lawn first day, upon return to PROPERLY finish job he wrecklessly tore up lawn in previously undamaged areas moving the grinder to and from the stumps. Lied to my face, not a man to trust. - BEWARE