Michael P.wrote a review of La Sportiva Mantis Climbing Shoe on April 20, 2010
This is a good comfortable shoe IF you get the right size. I saw a lot of reviews on this shoe before buying it and didn't listen to their complaints on its size. This shoe does seem to run smaller than a couple other shoes i've worn, like the Evolve Defy's, which i wear a 9 in. But the 9's for the Mantis REALLY cramped my foot for the first week of wearing them. They have stretched out a little and I am no longer in pain when I wear them, but i would suggest a 1/2 size up from your regular climbing shoe size. Every shoe is different however, so whatever shoe you get, take the time to find them in a store to try them on first.
They smear pretty well. This is my first climbing shoe so I don't have too much experience with shoes but the seem to do pretty well and the heel of the shoe really locks your foot into the shoe. And with the three straps, you get a nice tight fit. I would suggest this shoe to someone who is looking for a comfortable first shoe but not for an advanced climber who's looking to send a v6 or v7.
other than my sizing issue, GREAT SHOE :)