I own a 17.3 inch HP Pavilion DV7 laptop and like many 17.3 inch laptop owners had a hard time finding a backpack to properly fit such a large notebook. My search has ended with this backpack. It is pretty much perfect for my use and it has a great new modern/professional look for Targus. I was looking for a backpack to commute between home and work that allowed me to keep my hands free for carrying other bags. I don't need a lot of storage space, just my 17.3 notebook, mouse, cables, ipod, accessories, business portfolio pad and an occasional binder or two of work documents. And it fits all of this perfectly.Laptop Fit:First off the laptop fits perfectly!! Finally!! After months of dealing with bags that were meant for a 17.0 notebook, I found one that fit a 17.3!! The rear most zipper compartment is pretty much dedicated for laptop storage and is VERY well padded. You may have just enough space to fit a couple of magazines along with the laptop. About 1 inch of the laptop stick out from the inner padded sleeve but the velcro strap securely fits and keeps it strapped in. There is plenty of room between the top of the laptop and the zipper, so nothing to worry about. In addition to the padded laptop sleeve the entire front panel of the laptop zipper compartment is padded to give extra protection from larger items in the middle zipper compartment from damaging the laptop.Build/Materials:This build and materials are great! I was sceptically with it being an "eco-friendly" bag with recycled materials used. To my surprise, I really think the materials have a very high quality look and feel. The materials have a matte type look, no shiny looking canvas here like some cheap backpacks. Also, it feels very sturdy with solid stitch seams. The hardware is nice too with a very tasteful understated green accent color and stitching. The bottom water resistant material seems very durable although it does not cover the bottom laptop portion of the bag. The shoulder pads are very comfortable with plenty of padding and good contouring. There is an integrated handle built into the top of the shoulder straps which is a nice bonus. Also, three nice pads built into the back panel of the pack give your back some cushion too.Only one concern is with the zipper. The zippers are very very smooth...almost too smooth when opening and closing. Now, they don't open by themselves but it doesn't take much effort to open the zippers. Maybe this is a sign of high quality zippers and I just don't know it.Size/Capacity:Size is perfect for me. I'm 5'10" and it feels very comfortable with a full load. It fits nice and close to my back so I haven't experience any real back fatigue.Capacity is perfect for me too. It may be small for some people though. Like I mentioned, the rear most compartment is pretty much dedicated to the laptop with maybe some room for a couple magazines. I actually have a slim wireless logitech keyboard that slides in there perfectly! The middle zipper is the main compartment which has a width of about 4 inches and gets narrower at the top. I can fit my leather portfolio pad and 2 1-inch binders in there perfectly. On the weekend, I can take that stuff out and fit my Canon rebel SLR in there with no problem along with a flash unit and accessories. The front zip panel is where the organizer pockets are and has plenty of room for pens, cell phone as well as a mouse, laptop power adapter and cables. The ipod pocket on the side, zip pocket on the front and bottle holder are all nice bonuses for me. The bottle holder is not your typical mesh bottle holder. It has a drawstring with a hardware tightener so this maybe able to accommodate other items if you are inventive.I hope this review has been helpful!