As a lover of cozy sweaters, which unfortunately all tend to Pilling, I was forced to look for a good lint out. This seemed appropriate since it firstly does not require batteries and secondly has a pretty large contact surface. The unit was delivered quickly and was working at the first sweater even properly in the second but already no longer. I complaining and got immediately a new device sent. In this short time the same problem. I emptied the machine and tried it as thoroughly as possible to clean, but initially no reaction. In desperation, I took the lint apart completely (Caution: The blades on the rotating plastic sheet under the perforated plate are sharp!) And lo and behold: The Wollflusen had settled below the disk with the knives and blocked its rotation completely. After disassembling and cleaning the shaver does now properly again, but for how long? In my view, no device that deserves more than one star. The second star I forgive for the impeccable service of the shipping company.