Hello,
this is actually my first gig bag I ever bought and I'm using it since 2011 now. Before that, I had one that came with my first Bass. Till now I didn't had any problems with the material or zipper and I'm using it on a weekly basis. And as I'm a student without a car, I'm not laying it in the back of my car and drive around with it. I'm using it mostly with my ATK and my Warwick.
The inside padding delivers a good protection against outside force and the neck is safely secured with its Velcro fastener. The outside delivers a good weatherproof protection, or at least, I didn't had any wet instruments or any water inside of it now. The outside pockets aren't really big, but for most small utilities it is enough. A small folder, a cable and my strap and the front is almost full. In the neck pocket I carry my tuner, but could easily store 1 or 2 other small things there.
Another good point is the strap system to carry it. The two comfortable and big straps make it easy to carry it around and once setup, stays like that. The opportunity to store them in the back of the gig bag wasn't used by me yet, so I can't commend on that.
The only negative thing I like to point out, is that my Gig Bag was/is a bit twisted at the top. But it doesn't seem to effect it in any way if a instrument is inside. In the end, I'm sure there are other solutions, but this one is definitely a good choice for the price it cost.