Got these with a voucher I recieved in a giveaway about a year back. A friend had a pair and was raving about them; they're solid shoes, but too soft for my heavier frame. Only ever tried them on once, and never on a wall.
The rubber is 1.0 mm thick at the midsole and similarly thin all the way around. The heel is on the narrower side. Ridiculously soft and grippy rubber; you can literally roll them up from the toe into the heel with minimal effort. Consequently, they're are extremely sensitive. Great for working foot technique in (especially on boulders) and for building stronger feet since there's not much midsole support. All in all, an amazing agressive shoe for indoor climbing and training.