I got them in the mail and wore them on a multi-mile hike in snow the next day.  And approximately 20 more miles of walking since with and without snowshoes.  The broke in smoothly and painlessly, they remain waterproof and warmth was never in doubt.  I would recommend that a second liner is purchased to allow one set of liners to dry out from perspiration.  They are on the heavy side and bulky but if you plan on spending an entire day in snow and want to stay warm, these boots can't be beat.