Nickwrote a review of Boreal Mutant Climbing Shoe on August 28, 2016
Familiarity: I've used it once or twice and have initial impressions
Fit: True to size
First and Foremost, the shoes got the 4/5 because they are my first pair of aggressive shoes and I don't have much to compare them to.
Fit: My street shoe is a 12, I have slightly wider foot, and my toes are slightly tapered, Roman. I downsized a half size from my street shoe (like I did with my Evolv Pontas II) The fit is nice not too much in the way of pain, just minor discomfort the first hour or so. I feel like the worst of the break in period is right out of the box. I would say the feeling is the same as far as stretching my Evolvs, if that makes sense.
Climbing: From my little experience with the shoes thus far I can tell you: The toe rubber is a pretty neat, the heel hooks are secure, stiff shoes, edging felt great.
Only con so far is the lack of Boreal swag.. no stickers or nothing?!?! Thank you backcountry.com for the sticker & granola though, you're a real one for sure :P Overall excited to take these bad boys to the sandstone in Red Rock this season.