Has anyone on here seen or got one of these?

http://www.nino-robotics.co.uk/nino/

They are being shown at Naidex at the NEC this week. I cannot get there so I'm having a demo at my home on Friday. If anyone on here has already got one or tried one I'd like to know your thoughts on it as from what I can tell for someone who has good control of their trunk it seems like the ideal thing to use when going over the terrible pavements their are in the UK.

Thanks.