I own one too, and really like it. I use it for study, work, traveling, in combination with a MacBook Air 13".
Pros:
1. It has a very slim profile, but still packs quite a lot off stuff. Next to my MacBook Air it can fit a lot of thick books, binders, etc. if needed.
2. It has many pockets to store stuff like pens, cables, etc. Makes it easy to keep all that stuff in one place. The top also has a special pouch with soft padding for a phone or something like that. There's a string plus clip to attach your keys too as well.
I think I have an older model; I don't have the second sleeve thing next to the laptop, nor the little zippered pouch, but otherwise it's pretty much the same as this (random) picture.
The front part folds back quite a bit as you can see, so it's easy to find stuff. But it's still a top loader, so if you put something down at the bottom you'll still have to remove everything that's on top. But that's the case with most backpacks.
3. The laptop-department is quite big for a MacBook Air, but I just stuff it with a binder or a book, so it doesn't really matter. It's very well padded, and, most importantly, it doesn't go all the way to the bottom. This way the weight of the laptop is centered in the back, and doesn't make the bag press down.
If you have a bag where the laptop just presses down on the bottom, and you hate it because it makes your back hurt after a while, you'll love this.
4. The straps are very sturdy, well padded and positioned. This, combined with 3, makes the pack very stable and distributes the weight nicely so even with a fully packed bag you'll only notice a fraction of the weight. The handle is padded as well and feels very solid.
I also use the pack for
traveling light. A 2-3 day trip, and this bag is all I need. If you pack efficiently you'll be surprised how much stuff you can fit in here, and still bring everything you need.
I've been using it for about 2 years now and it still looks brand new; no exaggeration. I don't do much stuff to really wear down a bag, but still. It also survived quite a few storms but nothing inside ever got wet.
So, very good quality, and lots of little details that I appreciate. Example: you can even tuck away the zippers (which are very silent) so they're completely hidden, making the back look even more sleek, and preventing others from easily opening up the pockets on the back. Also no velcro anywhere, so no annoying sounds when opening up your bag in a library.
I don't know how you call this, but the things you use to adjust the length of the straps with tuck away easily too, so they're never hanging loose or gathering dust/dirt when you put the back down on the ground.
One thing to consider though, it doesn't really stand up straight by itself. The bottom is a bit rounded, so (depending on what you pack) in most cases it'll fall over if it can't lean on something like a wall or chair. Depending on your use this might be annoying.