Some of the negative reviews for this series, the xenith series, on other websites encouraged me to write this. This is an excellent pack with an outstanding warranty and a significant amount of features. I originally bought this for backpacking trips, and now I also use it for mountaineering. Pros 1)Warranty - I've personally had to send one of my packs back to Osprey (I accidentally destroyed it), and they sent me a new pack with no questions asked. I had the pack for 3 years and it was still in excellent condition before this. 2) Volume - I used it on several 4-7 day backpacking trips and a few mountaineering trips. Eventually it is going to Denali. There is plenty of room for trips this length. 3) Durability - My friend has a similar pack and his sternum strap broke when we were carrying all our mountaineering gear. I've seen reviews about the buckles breaking or a concern for it. I had this a whiteout and everything was frozen solid due to the cold and nothing broke. Note: I probably had ~55lbs in the pack at that time. 4) Comfort - I have carried 45-60lbs multiple times, and the pack holds the weight well. Yes, it will hurt your shoulders when its 60lbs, (duh). ~Cons 1) Ventilation - not as well vented as smaller packs but I think this is due to strength of material. Really not an issue. 2) Side mesh pockets - The mesh pockets will wear out. I had this for 3 years, and the material was still holding strong but showing signs of wear. Depending on use, I would give them about 5-10 years. Again, not a big issue - simply tighten the strap around the material. Note: Obviously if you're buying this, you plan on using it for extended hikes. This is not a daypack. Personally, I think this is the best multi-day pack in this price range. I have the rain cover and it works very well with this. Hope this helps!
Bob the builder
The United States of America