I got this last year as my light bag for when I didn't want to haul a ton of discs, either due to the heat, terrain, or just a desire to minimize my disc count for a given day.
The quality of construction is excellent, and call it weird but I was particularly impressed with the zipper pulls - mine is the smoke/green color with the green zipper pulls and they've held up vastly better than I thought they would.
Whether this is a good primary bag or not will really depend on how obsessive you tend to be about new hobbies. I know that I go pretty nuts, and being only able to carry 9 or fewer discs is a real limitation. I'm STARTING to stabilize on discs, but I still want to try a bunch more than I already have. If you're going to want to try different discs from a variety of manufacturers, then I would probably recommend going with something bigger in a backpack style. If you absolutely KNOW you'll only throw a couple of molds total, then the G-Series could be a good long-term solution.
I really love this little bag and I think it's great for what it does. It's certainly one of the best-made small bags out there. That said, I do get the criticism that you can spend similar or less money and get a LOT more carrying capacity. If you tend to get deeply into new hobbies, I'd recommend a larger bag to start with. My G-Series isn't going anywhere, but I do have a backpack-style for most of my rounds, especially when the weather gets variable and you want a place to stuff a layer while you're playing. The G-Series really doesn't have space for that.
In short, I think it's the highest-quality of its size, but the quality comes with a price that makes it a little tough to make an argument for.
