We use theses items on a regular basis for Home AV installations and have had no problems with the at all.
This product arrived before the due date and works as it should.
Best price I found. The backpack has plenty of room for my 17" wide screen laptop. I mainly use it to take my laptop to and from work. However, for a recent trip our family went onI, had 2 laptops, a digital SLR camera with a spare telephoto lens, a small digital camera, an ipod, electric razor, all charging cords and accessories for the above items, 3 baseball mitts, a softball, and there was still room left over. It also fit into the overhead compartment on the airplane. It has held up well. I will probably buy one for my son when he goes to college next year.