Have the unit bought here on Amazon and it was as always delivered quickly. Then immediately set to work all - grass was mowed only for 3 years, a corresponding amount of material fell to the scarifying. Negative case of too little pot, which had to be emptied several times at about 8 square meters. Positive but the result, provided you the device pushes ahead and does not remain uniformly, otherwise there's bald spots. Then again straightforward with the Belüfterwalze about it, changing and re-Fang 2 baskets full. Luckily the compost bin had just emptied. After Reparatursaat and fertilizing up the result will see that repeat annually in future. As long parked the right space-saving foldable device in the garden cottage.