The HotWheels Sky Jump is a bit of a pain to put together but quite good fun when it is finally done and working. Not ALL HotWheels cars work with it, they have to be the special plastic shelled ones or they fly off halfway round the track, which my autistic son finds hilarious....but far too close to my patio doors or widescreen tv for my liking!!
The motor is quite noisy and the towers must be kept level and very still. It works well on solid floor such as laminate, but don't really bother on carpet.
All in all a fun toy...keeps the kids occupied for a good while at anyone time. It is also quite efficient on batteries, so don't let that put you off.