Selling a pair in fantastic shape in size 11.5 if you're interested. My experience is pretty similar to what everyone posted here.
Here's what I wrote about them in my listing where they're for sale on a different site:
Mad Rock Alpinist - Size 11.5 - $125 + $15 shipping
4-5 days of ice cragging. Barely show any use at all. The stock insoles were cheap, thin, terrible and uncomfortable so I put in a Superfeet insole. Then they felt great. You'll most likely want to use your own insole as well. Other than that, I'm very happy with the boot. Kept me warm as low as 10-15 degrees. Punched through the ice walking across a river on the approach and my feet stayed totally dry. They fit true to size.