Tannus now has a UK rep who is signing up dealers so there might be a shop near you.
My local bike shop is now a Tannus dealer, much against the wishes of the proprietor but he was over-ruled by the manager.
The score so far is five or six to one - they've sold half a dozen pairs of Tannus tyres but have had to remove one pair for a customer who couldn't get on with them.
Feedback seems to be grip can be iffy on white road paint, although you could say that about pneumatic tyres.
It’s not so much the white lines that are the biggest issue. The things that really scare the bejesus out of you, until you get used to it, are the smooth concrete ‘mats’ at the start and ends of cycle lanes. If you
Instinctively over react, that can make for an eye opener. It does happen with high pressure pneumatic tyres as well, but the onset isn’t quite as pronounced. It is horses for courses, and if you’re used to riding off road, and on ‘iffy’ surfaces, most people develop the bike handling skills for it not to be much of an issue, but an inexperienced rider might find certain ‘foibles’ of the tyres a bit unnerving. They won’t suit everybody, not much does, but there is a definite sense of satisfaction when you hit an unseen patch of broken glass / sharp debris, in the dark, when it’s cold / wet, and you don’t have to end up fixing a puncture.