That is the right size (about 8 liters), but I don't like those MOLLE on the outside. Not only for the tactical looks but also for paying for things that I do not need/want. I would prefer that additional money goes for triple stitching or an additonal pocket. More function, and less tactical look.
But it is the right size.
I wish it had a front admin pocket, a back pocket, and no MOLLE