I purchased the Maine Guide Briefcase for my husband about 5 years ago and he was very happy with the product - held up nicely, waterproof, plenty of room for laptop and files. I ordered another one for his birthday last month and he was disappointed in the quality - it looked worn out and the leather was discolored. I called customer service and ordered another one and sent the first one back. My husband has been using the new briefcase for the past few weeks and he feels the overall quality of it is still not as good as the one purchased several years ago.
I love the material and workmanship, but I prefer the same with more space. Yes, there are some waxed canvas/cotton rucksacks here on the site, but none that offer specific laptop protection.
Got this bag a week ago and love it so far! Great looking, tons of usable pockets, easy to get things like computers and paperwork in and out of, and the apparent quality is excellent.