Its very breathable and you wont get moisture buildup from your breath. But its very thin and doesn't provide much warmth. But that doesn't seem to matter since your using a bandana anyways. I haven't had any troubles with it freezing yet but i haven't taken it through powder either. Definitely better than a bandana.
Not really. There are plenty of fleece lined bandanas that work great. I might pick up that Ride Qi to wear over my UA hood. That will probably solve my breathing problem. I can just pull the hood off my nose and use the Qi so I can at least get a little protection for my nose.