Honestly, I think this is the best bag I've ever had. I have tried many different styles and shapes from many companies. This is by far the most comfortable bag I have ever used.
I can easily fit my laptop (with or without a sleeve), phones, files, misc stuff, shoes, and a thermos in it to go to work. It is very, very comfortable to carrry with the strap pad, even when it is overloaded.
I personalized it with the fabric I wanted and did not include the interior velcro as I didn't want it to catch on to other things I routinely carry in the bag. No interior velcro has not had any impact on my ability to carry my laptop safely. I love the fact that I was able to personalize my bag.
I've used this bag daily for about 8 months and it still looks great with just some spot cleaning.
The only change I would make to this bag would be to add an interior pocket on the "back" side of the bag, for things that need to be handy but secure. A small suggestion to an otherwise PERFECT bag.