The only issue is that the Medium is a little too tight for my 15 in gaming laptop and because I am an overseas buyer, the exchange is too much of a hassle so I will be keeping this.The slightly poor fit is probably because gaming laptops are just slightly bulkier even if its stated 15 inch and is not an indication of the quality of the bag, this is why it deserves the 5 star despite the fact that it does not fit me perfectly.So those who are using it for their gaming laptop, do be aware that you might have to deal with a tighter fit, or just get the large size and save some heartache.
Originally bought the Medium for my 15" laptop, which worked, but the opening was super snug for trying to get your laptop in and out quickly, it will put stress on the zipper and end seams and not to mention wear on the edges of my laptop so I traded it back in for a Large.
I love the bag, but my goodness, the buckle design is stupid.
It's not that big of an issue though and I knew it was going to be snug when I got it.
Like their original messanger bag but with more useful pockets, more durable, and secure.