The scarifier working properly - only the pot is (as with all others) fairly useless. Meanwhile I use the device without the basket and go in connection with the lawn mower again over the meadow. The operation is also required with catcher since most anyway end up in the basket. The setting of the chassis works very simply via the rotary knob on the front wheels and ensures gentle scarifying up to almost plow the turf. The switch from scarifying to lawn aerator roller is quick and easy by hand and takes only a few moments. The lawn aerator roller is ziiemlich thoroughly and gets my lawn only in the height adjustment I see. Otherwise, one is quickly at a result that comes as close as scarifying. The noise is similar to a lawnmower - is unfortunately, does not lead with my rating but the point deduction. This builds the unit very compact and the handle is in two parts, it can be very small store together in a corner without it disturbs. My Conclusion: For the money, a good device that I can recommend with a reference to the useless catcher.