Puncture free solid rubber tyres?

Does anyone have experience of these particularly those made by Tannus tyres, whom I've recently read about. Only 2% extra rolling resistance, good for 8,000 miles etc., claimed by the manufacturer, sounds very interesting to me.
k.curtis
0
Posts
http://www.telegraph.co.uk/men/active/r ... tures.html
Revolution Courier Race Disc '14
My Strava
viewtopic.php?f=40042&t=13000513&hilit=tannus