In the ground a very good and practical sucker. Unfortunately a bit noisy. A Watt regulator in this regard would remedy, the suction power with z.Bsp. 600 watt instead of 1000 watt then would still be strong enough. The brush is not just simply but is driven by the engine. Quick conversion to hand vacuum cleaner with correct Pfuuuss! Because the brushes are narrower than in conventional vacuum cleaners, you need just a little more time for the same area ... Despite volume so a strong buy recommendation.