I have this pack, but in the 65 L option, and I have been very pleased with my purchase. Some of the things that I enjoy about this back is how light it is. It weighs next to nothing. I also enjoy the ventilation mesh that rests up against your back so you don't sweat too much when you are hiking in the summer. Also, very roomy, I am able to carry all of the essentials and some. I was very pleased with the amount of pockets for extra gear outside of the main chamber. The hip pockets are great for things that require quick access (i.e. camera, knife, maps, or whatever you can think of that you would want quick access to). There are also many straps and clips for outside storage. The only downfall to this back is the frame system which takes away from the volume of the main chamber. Other than that this pack is fantastic. You will be pleased with the durability, comfort and versatility.