I have the bag formerly known as the Thirteener. It is a great size for everyday carry. My 13 inch MacBook Air fits in the backpocket naked. With a padded case it fits in the main compartment. Also room for cables, a calculator, a book, and a small water bottle. I keep a slim notebook in the back pocket. The smaller size forces me not to try and bring everything with me all the time. Nowadays, I carry it more than my 13 year-old Large Classic.
I have the bag formerly known as the Thirteener. It is a great size for everyday carry. My 13 inch MacBook Air fits in the backpocket naked. With a padded case it fits in the main compartment. Also room for cables, a calculator, a book, and a small water bottle. I keep a slim notebook in the back pocket. The smaller size forces me not to try and bring everything with me all the time. Nowadays, I carry it more than my 13 year-old Large Classic.
I love the Gladstone on my flight bag, so I think the Gladstone 14" is my favorite.