Overall, this is is a great bag - good construction quality, lightweight, well ventilated, and high capacity for its size. A couple of points:

* This bag is extremely light for its size, which is a major plus for me. Also, by cinching down four straps on the side, you can make the whole bag very thin, which is another major plus for me since I'm always crawling around and banging other bags against things.

* The description on the Arcteryx website is wrong about laptop carrying capacity. The bag easily holds a 14 inch laptop inside a small case. A 15 inch laptop also fits. This bag easily can fit any reasonable size laptop, camera, hardshell jacket, shirt, snacks, drinks, at the same time.

* In the theme of staying light, there is no padding on the bottom of the bag. So, don't put anything breakable down there. The soft bottom means that its easy for weight to get shifted to one side or another if the pack isn't full.

* Although there is no padding on the bottom, the bag does have a plastic internal frame to help distribute weight. The ventilation backing is rough and may cause some pilling issues, although I haven't noticed any problems so far.

* While you can stuff this bag, it doesn't seem designed to hold a ton of weight for long treks despite the internal frame and hip belt. The straps are a bit thin, which makes the pack feel a little strange when loaded down. This may just be a personal thing, since although it feels strange, my shoulders didn't get sore unlike with some other bags. I've only used the bag for about a week, and the pack may get better as it breaks in a bit more.

* The two side holders are big enough for large bottles. However, since there is no cinching mechanism, smaller items will fall out of these pockets relatively easily.

* Mine is made in the Philippines, for those that care.

In terms of warmth, this jacket is fantastic, and I could not be happier with its insulative properties. Water also beads off its surface, although I'm not sure if this is from a treatment Arc-teryx applied that wears off or if it is inherent in the fabric. My only issue is that the stiff material surrounding the zippers is too long and when I sit down, they slightly dig into my rib cage.

In case anyone is wondering, this jacket is MADE IN CHINA. Arc-teryx has an absolutely lame explanation on their website about how it doesn't matter where their stuff is made, so they make no effort to disclose it. Reading this made me feel like they think their customers are idiots who can't make informed decisions.