I go through laptop/messenger/backpack/roller bags ever couple of years. There is always a new one to try.

This Powerbag is wonderful. I put my Kindle, Asus Android, Mi-Fi, & Asus Window in all nice and secure. I even have gotten into an early habit of plugging my device into the bag, and then plug the bag into the wall at home. Great stuff. It has plenty of pockets and padding. It carries like any messenger bag, but there is a lower strap for some use? I am experimenting with this strap for like a Sling Bag mode.

The only downside I see is that I cannot change out the cables, one pocket has an iPhone plug only and I do not use an iPhone.