I purchased this backpack because I wanted something that would last me and hold up better than my older backpack. I am a student commuter so I needed something lightweight and durable so I can speed through the streets of Chicago on my bike and make sure that my laptop is going to be safe and secure, and this was a great choice. There is a lot more room than expected once you open it up and fill it with all your books and whatnots, and the bright neon green on the Neon Blocks is an eye turner. As another customer said there isn't a spot for a water bottle but I haven't found it to be a problem, there is still space left over in the front compartment for my bottle, and as for the laptop sleeve there is extra room for it to move around, but I keep my 13in MBP in a padded external case and it fits perfect with the extra thickness. I got the neon because it's my favorite color and also it reminds me of Finn's backpack from Adventure Time just a little more snazzy. It feels well balanced with 3 large film books, notebooks, and my 13in laptop, the straps and back are comfortable and well cushioned, and it doesn't pull you back and fell clunky when wearing it like my old Ogio did. I'm 5"5 and it fits right in the perfect area, the lower straps fit right around my waist. I feel that this backpack will last me well over the life of the one it replaced. I shopped for days and hours before deciding on this one and Backcountry.com had the best price around for this and on the other ones offered. I couldn't be happier.