I agree with a previous review (jammer), these shoes excel when used for crack climbing, especially splitters in the thin-hand/hands range. The low profile toe is easily placed within the crack, and the board last provides support and alleviates pain on long routes. The forefoot of the shoe is not lined and does stretch a little, but not much (rather conforms!). The heel area is lined and supportive. With a conservative shaped last, they are relatively comfortable. OK edging shoe. Conversely, they have limited sensitivity and are not great on slabs. I would not use them for upper-level sport or face routes. (But you shouldn't judge every shoe by the same criteria.)

Love most of Sportiva's climbing shoes, however, if you're looking for a comfortable APPROACH shoe, then the Sportiva Cirque is NOT it. Small, low-profile toe box and sticky rand do help with cracks, but at the end of a long day climbing (in real rock shoes) your toes will be screaming for relief on the hike out! I even sized them them a tad bit large, but for me, the small toe box/rubber rand combination does not allow for much forefoot/shoe flexion when hiking. I got rid of them after a few trips....just couldn't take it!