My seven year old son was thrilled when this arrived for his birthday. I thought it felt a bit flimsy as i put it together, but thought, oh well, its only track. We found it totally hit and miss if the car made it around the track and on day 2, disaster, the little car lost power even when fully charged and never made it around the track again. i'm sending it back and choosing the Hot Wheels Mega Loop Mayhem which ive seen at my friend's house and seems much tougher. The main CRUCIAL differences are that the Mega Loop is more fun as two children can play simultaneously, there are no batteries or charging to deal with, and you can use all the hot wheels cars you already own on it, not just the one little rather flimsy car which in our case unfortunately broke on day 2.
I'm replacing with this Hot Wheels Mega Loop Mayhem