Yuzz wrote a review of Five Ten Blackwing Climbing Shoe - Women's - 2012 on March 1, 2012
I ordered these in both a 7.5 and 8 based on other reviews.
I wear a 7.5 street size. My La Sportiva Muiras are a size 37. I have a wider foot at the toes, nothing ridiculous. (For reference - Scarpa rockettes in sizes 37.5 did not fit my higher volume foot.
I mostly boulder, often indoors at anywhere from a V2-V7 in plastic land. I prefer a more down turned shoe for overhang problems.
These shoes run small, I tried for a while to cram my feet into the 7.5 (my slightly larger foot was not having it) I could get them in, but walking was close to impossible and the material being synthetic, likely wont stretch enough. The 8, I was hesitant to keep, since on one foot, my heel felt slippy.
I brought 'em to the gym and realized that the 8 had to be the right size since I rip them off my feet after a problem. They are relatively comfortable - one hot spot at my big toe, and a pocket in the heel of the other foot. The tongue padding is really nice. The aggressive toe has been helpful.
I am really hoping that these hold their shape and stay together.