The only thing a little one probably could disrupt the long run are the thin cords. We have 2 games sets, ie a total of 12 balls and 2 target marker included. So that the bag is very heavy and if you have to wear this long then that should have a little cut. As we have always to deal with only short distances with this bag fits us the extent.
Overall, it is still plenty of space. I would guess the easy to stay in the bag 4-5 sets ... but the weight should then nevertheless be considered ;-)
Conclusion: A simple bag for the corresponding game, well made, in effect, one probably not optimally designed. As for quality, there are no grounds for reproach.