Laptop bags can be a hit or miss proposition. In the case of this one, it's a hit. Have used this Think Tank Artificial Intelligence 15 V3.0 Laptop Bag for a few months now, but it's one that has exceeded my expectations by quite a bit. It's sized to fit most 15.4" laptops or smaller sizes along with the expected accessories, and does its job well, even in inclement weather (as I have already found). It travels well and fits almost anywhere. The bag is thin and lightweight, and the main compartment is properly padded, though not puffy like some. It has a discrete and professional appearance, providing true functional protection without a lot of excess bulk and clutter. The workmanship is exceptionally good, with metal clips and D-rings for the removable, cushioned shoulder strap. It has premium YKK RC Fuse zippers that move smoothly. Its interior is properly lined, and won't scratch your computer when you're taking it out of this bag. There's an expandable front pocket that opens wide enough for your computer accessories, and there's an organizer inside. You probably won't spill your contents as there are restrictive fabric panels that limit how far it can open. The stitching is tight and the workmanship is exceptional, putting it simply. I regularly pack my notebook computer's external power supply in the expandable front pocket, along with a small USB hard drive, cables, pens, small notepads and such. It has a business card slot that keeps them handy, and there's a rear document pocket that holds magazines, files and papers when you're on the go. It's these kinds of details and design that one appreciates after you've bought the bag and discovered them. The top has a sturdy grab handle, and the strap is quite sturdy and comfortable, which is a failing with so many laptop bags and cases. The non-slip shoulder pad is excellent for hours of use. It's also worth noting that Think Tank offers an interesting lifetime guarantee that they call their "No Rhetoric Warranty." From personal I doubt that I'll never need to use it, but it's reassuring to know that this company is willing to stand behind their products this way. Be sure to measure your own computer before getting one of these. This laptop bag has interior dimensions in the main pocket of about 10¼" wide x 14½" long and 1¾" thick, so if yours will fit, then this is a great choice.