The Talons are an extremely aggressive shoe making them ideal for overhangs. In terms of their performance, the small precise toe allows you to grab just about anything. I have even used them on slab climbs because of their edging abilities.
When I first sized out the Talons, I went a half size down from my street shoe (10 from 10.5). At first there felt like there was some dead space in the heel, but after a few sessions it formed perfectly. So even though these are synthetic, they do mold a bit.
The reason I am only giving the Talon a 3/5 is because of the fit and comfort. I am no stranger to cramped toes, but the Talon is very narrow in the forefoot, squeezing the toes and forefoot horizontally. The day after a long session the big knuckles on both my feet were swollen. Also, even though the material is perforated, in inner lining isn't so your feet sweet a bunch and wound up causing hot spots from where my toes were being stacked on top of each other.
So if you have a thin foot, these shoes may work very well for you, but if you have a wider forefoot, be cautious.