This is a lot of jacket for the money, I don't think there is anything comparable for the price. It has all the features you could hope for, is fairly light and the waterproof and breathability seem very good, although I will have to see how well is holds up. I live and ski in the PNW, so a jacket has to be very waterproof and very breathable to keep you comfortable and this has done it so far. I am 5'10', 165 lbs and the medium fits well.
I bought these as a replacement for a pair of Alpinist skins that were too short. There were no Alpinist in the size I needed so decided to try these as the seemed to be exactly the same. They are the same, the tip and tail attachments work well and are easy to use. The skins glide and grip well and they are light and fold up small. I did have a bit of a problem with snow working its way under the skin and the glue doesn't seem very sticky. Also, the include trim tool works well, but appears to cause a bit of damage to the glue on the edges - be careful when cutting - I think this may be why I am getting snow in there.
I thought this looked like a very cool jacket. My wife picked it up and said "this thing is heavy!". Then she tried it on and said "This thing is stiff and it hurts my arms". We sent it back.
Very light and very weak. I wold not use this tube if you are riding anywhere outside of a pristine track.