Am quite unhappy with the device. Delivery as always with amazon very quickly, packing everything good, also assembling. After about 30 minutes of working, the roller no longer turned. After calling the supplier, who was very knowledgeable and accommodating, I should just return the equipment and get a new one. So it was also all very fast. But as the first unit, and here come very strange noises, by now a duration of about 1 hour .. While it is running, and I'm done with my face, but I'm a little uneasy, as it will run the Two nearest time. Say I have that this is a normal lawn, eingesäht last year, no stones, no roots, nothing. Why the device is weakening, I can not say the sound forth and the first impression isses quite strongly equipped.