I bought this pack from Backcountry last summer and hung it in my gear closet for months without using it. For the last 16 days I have been walking every day on the treadmill with a modest load (25 pounds) and I have come to really, REALLY like this pack. The reason I bought the pack was because of all the organizational features and the adjustable hip belt but when the boots hit the trail, the only thing that really matters is how comfortable the suspension is. And this suspension is VERY comfortable.
I've owned a lot of packs (mostly Gregory and Osprey) and I think this pack has the best hip belt I've experienced. It's got two things going for it: first, the length of the hip belt pads is adjustable. I've got a large waist and I pulled the belt out so the tips extend just past the front of my hipbones so when I really cinch down the hip belt, it doesn't press into my belly like most hip belts do. Second, the lumbar pad has a very pronounced shelf (as you can see in the picture of the suspension). This pad fits into the small of your back and braces the hip belt as you cinch it down. So the hip belt can be cinched down tight, is very comfortable, and the design really carries the weight well with no slippage on your hips as you add more weight to the pack.
The shoulder harness has a velcro panel to adjust the torso length and there are two additional adjustment features so set up the harness. First, the load lifter straps attach to the shoulder harness with sliders so you can adjust the point of attachment. Second, you can adjust the sternum strap up and down to the most comfortable setting for you. It did take some experimentation but eventually I was able to attain what seems to be an almost perfect balance of weight between my hips and shoulders. As I'm walking it is very easy to adjust the weight between hips and shoulders by tightening and loosening the shoulder straps and load lifters.
In summary, this pack has a lot of adjustability that allows you to custom fit the pack to your body. It takes some trial and error but when you get it right, the carry is VERY comfortable. Bonus: it's loaded with pockets and organization options but the reality is, it doesn't matter how many bells and whistles a pack has if it doesn't carry comfortably. This is one of those cases where a pack that is supremely comfortable also has an outstanding pack bag. For those reasons I highly recommend the Banchee 65.