I have not used this bag yet. That is why I only rated it at 4 stars. I have carefully examined it, and the materials used and craftsmanship are excellent. The design is innovative, and the closed cell foam padding used help the bag retrain its shape for easy packing and use. This bag plus my medium size messenger bag would be more than enough for a week long trip, and you could pack a laptop and tablet in the small briefcase part of the bag with no worries. So it would be a great carryon for longer business trips.