This is a large very bag. This accommodates my G3 Phantom ruck, and platecarrier, and various other bulky items while still having an assortment of pockets, and the lower level for other gear.
The downside of its big. If its going in your car, you need measure and then measure again because it is a big bag. It is very long, and wheel tubs are going to make it hard to fit in a trunk (and this will effect SUVs).
The other downside is the wheels do not lock. It rolls very easily, which is nice, but it rolls very easily.