I picked up the Sony late last year and so far I love it. Battery life is much better than my friends go pros and overall it seems much more reliable with much less fiddle factor. While I've only had it out on a few powder days I haven't had to change the battery more than once. The remote works well for lining up shots, switching settings or taking photos, but I think you can do all the same stuff with the app for your cell phone. I opted for the remote because it is relatively small and I just zip tie it to my jacket. Video quality is awesome at all resolutions but it does have a 50Mbs mode which is amazing. I've got a couple of uploads on Vimeo but note that these were converted down to 30 fps from 60 and I don't think I shot these in 50Mbs mode. Also the Vimeo conversion really reduces quality compared to the original footage on my laptop. Mounting options are not quite at the go pro level but if you get creative you can solve those issues.
In order to get a more stable mount I actually drilled a hole in my helmet and then used their "hard mount" (forget the name) versus the useless goggle mount and it works great. I prefer wearing on the side of my helmet so it is a little less stupid looking compared to the go pro IMO. Also, I think the steady shot feature is a game changer.
Forgot to mention that it can fog, like any other camera that relies on a case for protection, so I drilled a couple of small ventilation holes in the case for skiing and I've had no fogging issues. Here are some samples:
Skiing pow in really bad lighting on mellow terrain:
Snorkeling in Mexico with the optional flat lens for the dive case and anti-fog inserts:
Time lapse in Chicago: