I think the bag is a nice size and has a lot of good features for a bag of this size and price compared to other brands. I do think it could use more internal pockets, so that smaller items just aren't loose around inside the bag. The red zippered bag is a good place to keep your keys and wallet etc, but I think another pocket somewhere to keep food or maybe smaller tools would have been good. On the inside of the front there is a n elastic cord for your shovel handle, and some bottomless pockets for your poles and probe, but I wish this area was more configurable or multipurpose for when you aren't carrying those.
It comes with elastic/Velcro to keep the loose ends of your straps in place, which is a nice touch and works well on the chest and shoulder straps, but doesn't stay in place very well on the thicker waist strap.