I own a HP Pavilion DM3-1130US 13.3-Inch Laptop and it fits neatly in the Caselogic ZLCS with a little room to spare. This could be the perfect laptop case for the student, business person or even casual user on the go. It has a plethora of storage compartments ranging from memory card sized to the ones the full height and length of the case. Along with my laptop, I can easily store a spare battery, my power brick and cord, an external DVD drive with some disks, a novel, a phone, my wallet, a compact digicam, pens and folders; and still have room to spare. Pockets and compartments are well laid out and items inside are easy to get at. I don't travel much, but I can see the Grab and Go feature being a boon to busy travelers in a hurry at the airport, as well as the straps that attach it to a rolling bag.
Construction quality is what I've come to expect from case logic -- very good. I've only owned it briefly, but everything appears well put together and the materials durable. The straps are sturdy. I especially like the large nylon zipper pulls as I've had my share of metal ones break after. I'd have to rate the padding exceptional as well, though I hopefully won't be testing it myself. I did drop it onto a table from a height of about 2 feet and the cushioning did its job well.
Aesthetically speaking, I feel it could look a little nicer, but the basic black is no-nonsense and functional. At this price point I don't see how one could do better. In fact, I am hard pressed to find anything to complain about. If you need a lot of room for papers and other equipment, then you might need to look at a bag with more storage. But for the light traveler and for day-to-day use, you really can't go wrong with the ZLCS.