Jesse Rothertwrote a review of La Sportiva TC Pro Vibram XS Edge Climbing Shoe on September 20, 2014
Familiarity: I've put it through the wringer
these broke in great, and are currently awesome. I can wear them all day and they do good on aggressive climbs. My smaller friends have had issues with the stiffness, but at 6'1" 155, they feel great to me. From toeing a knob on a roof, to smearing some steep slab, or jamming a crack these things rock the rock all over. On the downside, the rand rubber delaminated immediately, and quite a bit around the ball of the foot area. Kind of tacky from a $180 shoe, but a little rubber cement and all good.
As far as sizing. I wear a size 10.5 street shoe, 10.5 to 11 evolv, 9.5 to 10 FiveTen, 10.5 scarpa, and i got these in a 42.5 which is like a 9.5 and they're perfect. So size down.