I took it for myself, in connection with the complete repair of 3 rooms. apartments. Starting from the floors and ending with the ceiling and walls. In a word, everything at once . The thing is not interchangeable. Delivered on time, the courier rubbed into the hallway for half an hour, despite my persuasion to go through. And patiently waited while I used this gadget. As a result, he gave babosiki, signed in kl. They shook hands and parted ways. And immediately to work.