That says my partner: - The assembly is easy and is also without guidance quickly and easily in only 10 - completed 15 minutes. - There are 3 Vertikutierstufen that are adjustable with a dial on the wheel: (3 mm, 7 mm or 9 mm) - The transmission is powerful and creates effortless even hard or slightly rocky Grassterrain. - The scarifier weighs just 10 kg and is extremely manoeuvrable and easy to use - The scarifier provides an excellent result, the lawn recovers quickly. It eliminates nearly all of moss and stirs not all too much on. Switch blade cylinder with 8 dual blades and aerator roller with 42 claws quickly and included here - - Aerator cylinder exchanges to by dissolving two Allen screws, but what's a little awkward going fast. - The device is folded up quickly and then takes hardly any space a (no larger than a 19 inch tires). The handles can be folded down twice. - According to the manufacturer intended for lawns up to 300 square meters, but I have about 500 square meters, and have to say: it is simple and with excellent results. - Collection basket is rickety and is definitely too small - could be processed bigger and better. - By registering, you can extend the manufacturer's warranty of 2 to 3 years for free - Turning on the machine I find something awkward - could have been solved easily. The backup and the start button are a bit cheap. - The rest of the scarifier is - except for the pot as well as the backup and start - very well made. - The unit is very quiet in operation, which makes a pleasant working longer. - The rollers / wheels are set quickly and run smoothly and accurately - I use a rake or by scarifying the lawn mower to remove the remains because the catcher is not exactly brilliant and I'm so fast. - The power cord is clean and well fitted, so that it no longer interferes with the work. - Because I find the result more important than the disadvantages 3 (start, backup catcher) I give 5 star - I would recommend to my friends without hesitation also Scarifier - Him Have already 3 times borrowed my neighbors and they were astonished at his very good performance - For a price of 91.95 is obtained 2 to 3-year warranty and a real help to have a good clean and well-kept lawn - Top performance with clean lines - easy to use