I bought this backpack to replace an old, durable Eastpak one, so I wanted something that was at least the same quality. The materials feel better to touch than I expected, the main compartment easily fits all I need on a day-to-day basis (including a laptop, lunch containers, trainers, sports clothes, a small handbag).
Used almost daily with no issues and has dealt with loads of up to 15KG with little to no problems at all. The padding on the side of the bag that faces my back is a nice addition and helps to pad anything heavy or hard inside the back pressing against my back.
This is a good bag, it does what you want it to. Some of the details are fantastic. I bought this bag because it has a lot of space for equipment and as I travel with a lot of musical equipment (i.e. laptop, interfaces, cables, hard drives etc) I found that normal sized backpacks were just too small, this handles all that with a lot of remaining space.