Its very sturdy and solid. The locks arent as well made as I would like, but I have high standards for things like that. I had to send the first one back because one lock would no latch at all. Manufacturer random error, it happens. Replacement was perfect.
Remember that this is more about protecting the laptop, not security, the locks wont stop anyone with a large blunt object.
Will fit a 15" notebook if you use the included velcro padded bar. Without the bar, my Dell Studio 17 fits, but *exactly* fits. There is enough room ontop of laptop for power brick (and cords) and maybe a few small items (my non-travel size mouse fits in the height no problem) but not a whole lot of space.
Would recommend for good travel protection, but would pack bulk of accessories in 2nd case/bag. Would take on plane, but not to office every day. You get some awesome looks from people when you carry it (Walk with the right air about you, and people will thing you are super important)
Like some reviews say, and also the spec, its heavy when empty, nearly 8 pounds. Combined with laptop, its got quite a mass to it. Shoulder strap takes care of that. Its awesome if you are not carrying it.