I bought this for his birthday Anhänder my son. Unfortunately, he was broken and had to let him fix it. Since we have equal to Siku robe that went super fast. Mondays and Fridays we have sent there, the repaired and now fully functioning device again. Now it is in daily use and it works oh two months still. Four stars because I disconnect by sending a broken appliance a star. If it works, it's great.