This is the 4th pair of SoiLL climbing shoes I've owned and by far the most aggressive. Previously I have had the Tokyo 2020 streets, Toms x SoiLL streets, the old Free Ranges and now the New Zero Pro. After one sesh at Hall of Horrors in Joshua Tree and another sesh at a local boulder site I can say that the rubber is sticky AF and the toe box and heel fit very well, although I haven't set any heel hooks yet so TBD on how that will go (not much of a heel kinda gal but maybe these shoes will change my mind). So, so far so good!