Value for money is ok! When the manual reads 3-5x & not rush with the shortening of the parts begins, it should be possible to everyone. You must make sure to first mentally deal with it, because everyone has a different perception when it comes to pulling off & Charging moderation etc.! Fact is, if you have understood everything correctly and installed, it is a very good product, which simply brings joy and it shows immediately, when you finally, despite light can ventilate & humid warm weather in the long run in the room without going through a to be single mosquito or the like harassed again :)