Just want to add to this review to avoid the hassle of creating a separate review. I got this bag about 2 months ago, and I feel like I've used it enough for me to write some comments.
I agree with everything the OP says about its built, sturdy clips, space, etc.
The absolute BEST feature I love about this bag is that IT DOES NOT LOOK LIKE A CAMERA BAG. This probably won't matter to very many people, but it does to me, not because of styling (it looks great btw), but more of a "blending in" type of deal. I don't have to worry about people targeting my goofy-looking camera bag and trying to steal something from it.
Next, this bag can FIT stuff! Ooh man, what a simple, yet effective design. I can do a 1 body/4 lens setup In my bag right now I have:
* 40D with Tamron 17-50mm mounted, hood STRAIGHT
* Sigma 10-20mm hood STRAIGHT
* Canon 70-200mm F/4 with hood reversed, tripod collar
* 430EX with omni-bounce (or can be replaced with another lens: prime or a small zoom)
* USB cable, CPL, extra batteries, and other small stuff.
The 70-200mm F/4 is about as deep as this bag will allow (although I don't have a F/2.8 to test it out). I can't mount the 70-200 to any body. I can mount a standard sized zoom or a small prime with its hood on (ie. Tammy 17-50, Sigma 10-20) no problem.
I'm still debating whether or not I want to keep this bag only because I'm thinking about getting one more lens (100mm L macro) to complete my lens collection (yea right, how many times have you guys heard someone say that?).
With the way I have my camera set up (lens facing down, back of body pointing towards me), I don't believe a grip will fit on my 40D.
Overall, I think this bag is PERFECT FOR TRAVELING. Its not meant to lug all of my gear, and I should make a conscious effort to NOT stuff my bag, so I will be forced to think creatively with the limited lenses I have.