Now that we have had this product a few weeks I feel I can give a honest review. The good- self balancing is awesome. It's easy to ride. The music sounds really good even from 100 ft away from my cell phone. It's very sturdy and durable.
This is really good fun, it's built very well and feels so much more robust than my last version, it has great battery life and easily lasts for an entire afternoon playing outside the house, the light-up wheels and built-in speaker is very cool indeed, the hover cart attachment makes this so much more fun, I'd always wanted to try one and now I'm hooked, the speed and controllability are superb, it's also not just an afterthought it is a seriously well-built attachment that feels very strong, all in all, I'm blown away for the price, it's a complete bargain that is a total blast to ride.
Hoverboards appeared and disappeared in the blink of an eye about five years ago, due to apparent spontaneous combustion and pavement chaos, but they were loads of fun - my son's is, as far as I know, still in a wardrobe in a hotel in Portugal, as they were banned from being taken on planes while we were on holiday.
Fairly easy to assemble though I did go to Youtube to make sure I was assembling it correctly.
My 7 year old Granddaughter loves it but beware the child doesn't lean too far backwards on it or it will tip over, however great fun overall.
Battery life is good, Granddaughters been out on it max 2 hours and its been fine I just stick it back on charge after shes been out on it. One thing to note it to take the seat off the hoverboard or it will reduce the battery length, also make sure its "On" Before sitting on as switching it on once sat upon may also reduce battery life.
All I can say on that is, we are all so far in one pieace and so is the board and kart. Win win.
All you got to do really is remember to charge it.