Bought for my grandson. We've been watching him for a week, so we've seen Dino in action. Arrived safely, everything works. Works well on smooth surfaces, but not on carpet. If you have carpeting, take this into account. He particularly liked the "smoke breath" (water mist) function. It came with batteries and they lasted a week and a half. The remote control is easy for a four year old to use. A few downsides: It comes with two black plastic bars that attach it to the packaging. A very small Phillips screwdriver is required to remove the rods. Another thing is that it is noisy. I paid more for it because the remote has a volume button, but not sure if that matters.