Have bought the Siemens vacuum cleaner VSZ 31456 and was of the Standartdüse for hard floors and carpets rather annoyed because you had to constantly switch when changing the substrate and adjust the suction strength. Because I have in my apartment only hardwood and tile, only partially covered with some short-pile carpets and smaller bridges, I have decided for the turbo nozzle. For my ground conditions / linings the turbo nozzle is very good so far. The annoying switching and adjusting the suction is completely eliminated, even when vacuuming the couch (microfiber). Dirt and cat hair are absorbed easily and I can Bude by eyes in a train. Only the volume has to get used to something, but it is to my mind quite bearable. Oh, and the "art-rug" on the balcony could be excellent suction without complaint and without problems. For deep-pile carpets, however, it may well be different, but this I can not comment. For this reason, I give full marks, but limited to the ground conditions described above.