I've always wondered what it would feel like to roam around outdoors in sub-zero temperatures, and in February 2013 I finally found out. You really just have no idea what cold of that magnitude feels like until you experience it.
All in all my cameras performed well, and I had no issues with battery power. It was me that failed - I couldn;t stand to be outside for more than a few hours or walking around town. Couple that with looking over your shoulder for polar bears, and it was a challenging place to photograph.