I try to be as thorough as possible when writing reviews, because I know how helpful they are when reviewers are honest and have genuine experience of the product in hand.
I bought the osprey talon 44 rucksack for a month long backpacking expedition around Italy and France with my girlfriend. I had looked at around 10 similar bags that had a good review, but what I loved was that the talon was so light and spacious without being overly fussy, with lots and lots of pockets.
However my real concern was that the talon would be too light and not durable enough to withstand the abuse of airports, buses, trains etc, but I was pleasantly surprised. For the full month the bag was crammed full of compression bags, a two man tent, cooking equipment, clothes, mats etc and didn't skip a beat. While travelling I carried the 44litre talon while my girlfriend carried a smaller and lighter unnamed 25litre rucksack. After a few days of this through 30-40degree heat we switched bags as the shoulder straps were hurting my girlfriends shoulders. She couldn't believe how comfortable the rucksack was compared to the much lighter rucksack, and continued to carry it for the rest of the trip.
So to conclude you definitely pay for what you get. Im planning an everest base camp trip next summer, and I'm glad to say my talon will be coming with me :D