Five Ten - Kirigami - Climbing shoes tested

The shoes feel nice and quality is good for the price. My main issue is the mixed information when it comes to sizing. Some places say size up to varying levels, another place says get your normal size (and someone I asked at the gym, who had a pair, said this too!). I didnt have anywhere to try these before buying so I went with my normal size; I am a size 11 normally and wear a 9.5 in Boreal rental shoes at my gym. The shoes come out at about 8.5 minimum! I even rented some 9's and the 5.10's were still tighter.
I still attempted to climb in them but they are not stretching at all, and I know I can't return them now, you live and learn I guess.
Grip felt miles better than the rentals and I was more confident on the small footholds (for as long as my big toes would allow - the pain was too much and I had to take them off between climbs).