I am very pleased with my GG Alpine vapor, I have used for several snowy and non-snowy dayhikes in NM and found that the excellent compression system allows the pack bag zip up to a small enough size not to flop around even when very minimal volume is being carried. I also used this pack on a winter 3 day trip in the Adirondacks in NY and it carried every thing I needed comfortably despite loading up to about 40-45 lbs. The lack of many pockets and the minimalist design proved to be no problem, I just place equip in stuff sacks and pack so that what I'll need before setting up camp is accesible. If I need another layer, I just pull out the "Clothes" stuff sack, etc. My friends with packs from Osprey, Gregory, and Kelty were less comfortable despite having slightly lighter loads. The ice axe attachment system worked well
Nitpicks: I am a little concerned about the durability of the Schoeller side pockets, they are very functional and accomodate a surprising amount of stuff, but are showing some signs of wear. Having said that, they are not torn despite extensive bushwhacking and generally rough conditions.
This is one of the best packs I've ever used and I don't give it a 5 only because I don't believe perfection can come from imperfection, i.e. humanity. Peace