I had one for a while (LWAB will recall, I think, that he had a go on it at Meriden at an Origami ride?) - "interesting" but like riding a bag of tent-poles.
I was waaaaaay too big and heavy for it and sold it on - at a profit to some nut who came all the way from London to Stratford-upon-Avon by train just to collect it!
Having met you PB, I would suggest that you would be on the heavy side to ride it.
There's a book about a lady that rode one across the US - can't remember her name, I think she was a retired Headmistress ... and died relatively recently [5 minutes max is my bet on someone posting her name]
Rob