We bought the car race track for our 7 year old son for Christmas. I was due to some very negative reviews but little nervous whether the racetrack also work and have to say the track works just great. The structure is relatively simple but requires the help of an adult, but since the individual parts of the train pretty hard press together. The assembly instructions may be extensive, but sufficient for a quick setup of the web. The two vehicles are about the same speed but must be somewhat different risks, making the car race track a little more interesting. Our son is already several hundred laps and it can be either in the cars still in the race track in any way recognize wear and tear. The track is very stable and even after the cars are umpteen times flown off course see the cars still fabulous and function properly. However, one must from time to time, the grinder of cars bend back again something that is very simple. The included fencing but do not work as such, but are pure decoration. It is advisable to buy an extra fencing it. So they can not be put off by the buyers with two left hands.