I got this for one-bagging while flying and it has been great on the three trips I've had it on. Plenty of space for me to pack all of my clothes, electronics, and toiletries for a week long trip. The inside organization helps keep smaller things easy to find and the larger areas fit packing cubes very well. I like the burly construction and the material, though it isn't waterproof, helps keep things dry if you get caught in the rain.
This is my luggage now. I initially bought this for taking international trips lasting 2 to 3 weeks and it was perfect for that. But, I just started using it for everything. I've had it for 5 years and it's been on every trip I've taken since then via plane, train, or automobile. It looks and functions exactly the same as it did when it was brand new. I can't recommend this enough. I would buy another one, but I'm not sure I'll ever have to.