I've only used them twice, but they've performed beautifully.
Use: mountaineering/ice climbing
Break-in Period: none
Weight: about 5 lbs.
Price Paid: around $350
I've only used them twice, but they've performed beautifully. They are excellent in breathablity (the liners), waterproofness, and overall performance. The seamless shell is a beautiful thing and the soles aren't as radically lugged as Vibram Clusaz (something like that) so technical rock isn't like being on stilts. I love them so far and I cannot wait to get them out on vertical ice. But, buyer beware, the fit is not for everyone.