"So 130 dollars is just to the point of being a little on the steep side. But i was pleased with this fun little build. It has a very interesting differential. This is probably the sturdiest lego technic car released. I see people complain about the speed but i think it goes fast enough. You just hold the app "accelerator" and it will take off. Now my only complaint is the front tires rub against the fender when you have the full and half bush on the exle. I solved this problem by just removing the yellow half bushing and now the front tires will miss the fenders by millimeters."