I got one about 2 months ago and still haven't ridden it yet cant get the poxy thing to start at the moment tho which doesn't help but a couple of my mates have them and they're great fun.

one of my mates is over 6 ft and has no problem on them altho where his legs stick out quite wide he did come a cropper once with a concrete bollard. lets just say he misjudged the width & the bollard won he couldn'a walk properly for about a week afterwards tho