User Review: La Sportiva Men's Miura VS
In short, these are the best shoes I have ever owned. The edging is incredible and like all Sportiva shoes I love the rubber. Basically, put your foot on the rock and as long as you trust your feet like you should, they'll stick.
I have some what of a large, but skinny foot. I normally wear a size 12- 12 1/2. I got these in a 44 and they have a little bit of excess material over the knuckles of my toes but strap them down tight and it does not seem to matter much. They stretch about a 1/2 size max in my experience, so make sure to compensate if you need too.
Great shoes for sport climbing but if your into long trad climbs, might want to go with something a little less aggressive because after awhile, your foot gets a little sore.