I already own an older model of this bag (bought in 2011) in medium. However, my 17" laptop is so large it barely can be squeezed into the computer section of the medium bag, so I decided to buy the large bag to enable me to carry my 17" laptop more easily.

LOVE IT!

Features I really like: It still has the zip flat for TSA area. It still has the napoleon pocket (which is where I keep my office keys). It has removable velcro protectors to allow you NOT to have to RRRIP open velcro to get to the interior area when you unhook the straps from the flap. It still has the brick storage area on the bottom (which is where I keep my son's extra asthma inhaler) as well as my pocket knife. The strap is now detachable, but it still has the quick release function.

While this is a messenger bag, I use this as my purse. I'm one of those who likes to be prepared, so I tend to carry a lot of stuff -- computer connection cables, spare battery to charge up cell phone/iPod, medications, toothbrush/toothpaste, iPad, Kindle, laptop, battery operated fan. All of this fits nicely in this bag without weighing me down because the weight is nicely distributed.

One thing I would recommend is purchasing some of the Timbuk2 bags with clear side to organize smaller things into. I have three bags which I put things into to keep tooth care items together, medications together, and my camera in a smaller bag to protect the screen from scratching. It makes it a lot easier for me to reach into my purse to pull out the organizer bag I need rather than digging through piles of stuff trying to find the one bottle of medicine which is buried at the bottom!