The compartments that got the most use from me, besides the main one, were the top and front zippered areas. They were such a nice size, measuring about 6 x 10", able to hold everything from my Moleskine notebook and pens, to sunglass cases. I prefer the front, lower, compartment better since loading it with weight did not at all affect the balance of the bag. The top compartment is part of the front flap of the bag, and depending on the size and weight of the contents, could cause the bag to swing and sway while you walked, or when you put the bag down. Often times, my bag would droop down and forward, by my feet, at work; looking a little sad.
The shoulder straps are always a focal point for me and the ones on the Rover Pack are spot on. They are very lightly padded, feature a pair of d-rings, and are sternum strap compatible. There is minimal excess material hanging off the straps, which is a huge pet peeve of mine. Rounding things is the top carry handle which is a must-have for me. All the straps are relatively thin and a standard 1" wide. This might seem too minimal for most bags, for for the purposes of the Rover Pack, it is just right.