TY wrote a review of Northwave Celsius GTX Shoes on February 3, 2014
Familiarity: I've used it once or twice and have initial impressions
Fit: True to size
I was going to order the Arctic version(for Seattle's winter riding) but I got this instead because of the gear-expert advise given on livechat.(They are usually much helpful, but not this time) I've tried them for commuting at below 10celsius and maybe about 5celsius(never been tried below zero), and my toes were completely cold and frozen both times.