Would buy them again
I've been climbing for a year now and I've had these for about 7 months now for indoor climbing and bouldering. I have an extremely narrow foot and my heel/achilles tendon area looks almost straight up and down, so it was important that these were narrow enough and wouldn't dig into my ankle. These met both requirements.
I usually wear a size 10 street shoe and I got a size 41 (9.5). They were a tiny bit too tight when I got them, but they stretched out and now they fit perfectly. I can wear them for 2 or 3 hours, walk around a bit, and still feel fine in them. Compared to other shoes I've worn, these are perfect and I will most likely buy another pair once these are worn out. Overall, they match other people's reviews of them that I've read.