Mould King11014 Roller Coaster Building Kit, Amusement Park Funfair Track Construction Blocks Toys with Motors, Ideal Gift Toy for Adult/Kids Age 8+ (3646 Pieces)

My son had a really good time building this rollercoaster. It's massive and looks amazing with lots of cool details. When it runs, it's pretty impressive. Here are the issues he had.- The motor at the top of the tracks is really heavy and is connected to a tire that it spins in order to speed up the cars when they come by. The issue is that the motor is heavy and doesn't have enough support, so little by little it comes apart then falls off- The set comes with two cars that run on the tracks but no people. You can put people in the cars but you have to take their heads off because there's not enough clearance when coming out of the loop. Heads on equals wacking them on the tracks. It would definitely be more fun if you can put ppl in the cars.