Got this for my family for boosting the fun of mario kart and any other games the kids have got that involves racing. They turned out really good, better than i expected, we did try and get ourselves in the kart too, but sadly I think adults may be a bit too big for them and you spend more time trying to balance, but you can try. But seeing as these clearly are for kids mainly I wouldn't take any stars away for that. I'd say these were perfect for kids between 5 and 15 depending on height, up to about 5ft would be most suited, but as I said, give it a try!! Still lots of fun. My boys seemed happy with the controls and they didn't manage to break it in a afternoon so that gets my vote of confidence.