They are a quality product by all accounts. I haven't bought a set yet but will do when funds allow. Many fellow club members (VHRA) run them here in the UK and all are satisfied.
You appreciate that they were developed as a race tire. Those that use them on the road report reasonable mileage. They look great as well
From personal experience I rate them very highly but make sure you use their inner tubes as well which seem to be a lot better than quality. Well worth the price.
John