We ordered the bag because we were looking for on the size of something in which our equipment fits in together. (2x Jackets, suits 2x + 1x ice vest / Shorty, fins, booties, masks and the remaining bits and pieces, no bottles;))
Of weight, to get there well, the machine hike with us with in your hand luggage.
Build quality is excellent in our copy.
The only drawback: The bag tilt forward, if you do not loads correctly, ie not pack heavy in the front pockets. Here the base of the bag is not adapted to the real focus.