Arrived on time, unpacked, assembled and losgelegt. The equipment has been procured for the rehabilitation of old wooden windows and the first attempts were very promising. The machine is well in the hand - be careful that one does not cover the vents - and is well balanced. By controlling the speed a very gentle work is possible, the machine "jumping / tearing" at the first contact material a bit. Remains to be seen, the wear of the tool material, as lamellae, sandpaper etc. It's not exactly cheap and is somewhat reminiscent of vacuum cleaner in relation to the (original) bags. Schaunmermal ...