We own this Rennstarter- set now since at least one year and it will still be recorded! Our son is a diehard fan and Carsten had been a lot of fun with the set. It is robust and even prima suitable to transport the favorite Cars-cars. The only complaint is the fact that the starter the car not very far catapulted at full occupation and the substrate must be reasonably smooth. Amazingly, disturbs only us and not our son :-)