I've looked at these but they are soooo expensive. Could never justify the cost. Glad of the positive review though....maybe for my 50th :-)
Don't wait until then, Will, if you're unlucky like me you'll have left it too late and a race wheelchair will be more appropriate...
They are quite good but very pricey. Was tempted by the Harrier one which is much cheaper and gets good reviews but was temporarily sold out.