There are 2 things (okay, 3) that I think would make this thing the perfect bag. First, I wish it had the storm collar feature that's present in most Versipack models, since (as others here have said) the sides tend to bulge out from under the main flap and if you got caught in the rain, the stuff in the main section would get soaked pretty fast. Second, I wish the large front pocket (under the main flap) had 2 zipper-pulls, not sure why it doesn't when almost every other Maxpedition product has 2 zippers everywhere. The last thing I wish they would do is release this in an S-Type variation. I'm a Southpaw and wear it on the left and it works surprisingly well actually but I would like to at least have the option for the "proper" left side carry.
As far as things I prefer over the normal version, the front pocket (the one I wish had 2 zipper pulls) is FAR superior as far as organization options with the slotted elastic for pens, flashlights, knife, or whatever. On the regular version you just have to slop it all in there or rely on clips to keep things in place. The handle across the top pocket is also alot more useful than on the standard version. The slightly thinner fabric is a break-even to me, It's still PLENTY sturdy and the lighter weight is nice but the standard version is a little more stout and can pretty much stand up on it's own which can be handy. Love the plastic ring on the strap (compared to the black clip on the regular version) for keys or whatever, it works much better if you use a caribiner on your keys. (doesn't everybody?)
I love/recommend the khaki color by the way, be advised that in person it's alot darker than pretty much every picture on the web will portray. It's almost hard to discern it from OD green in other manufacturer's items.