I cant really speak to the
Briggs & Riley, many on here swear by the brand for the warranty and quality. I have the Tumi and use it everyday. It has never let me down and it takes a beating. I have had zero quality concerns and it can carry a mountain. Tumi is recognized as a luxury brand, that is not to say that B&R isn't, Tumi just spends a lot more on marketing. The pockets on the Tumi have served me well, the zippers are incredibly strong and I have never had any issues with them. Tumi also sells some addons for the bag. They have a "flat folding pack" that makes it easier to keep your clothes tidy. I will post a link to it. I think it is 50 Euro / dollars, or something like that. I feel like it is a decent addition and may help with what you are looking for packing wise. I prefer Tumi, I feel that it is more professional and is more recognized / accepted in the "office." Maybe I am just a sucker for the marketing. Whichever you choose to go with, I would recommend that you invest in a Tom Bihn Absolute Shoulder Strap. It is a significant improvement and is very comfortable.
Links:
https://www.tombihn.com/products/sho...nt=16664457159
https://www.tumi.com/p/medium-flat-f...-pack-014823D/