I wanted a second gig bag for my second bass that I would cary to the rehearsals and gigs in a walking distance because lately I am carrying two basses.
I already have a Mono Vertigo, and now I didn't want to spend so much money, and the choice went to a Fender FB620. First of all, Mono is pretty good, but not perfect. It is robust, the straps are pretty high so I hook up every door, and being a only vertically open bag, You can not reach lower part even for a cleaning.
Now about Fender FB620 :)
Comparing it to Mono, straps are at better position vertically and it's smaller in size. Design is great, and build is at pretty high level.
Disadvantages in my opinion are quite a small space for other things (cables or even small pedals can not fit).
Also, the bag arrived folded in half, which I didn’t like. At the folding point, it is constantly folded when the bass is removed.
All in all, the bass is pretty well protected on the sides, and it has a neck fixator, which with its excellent design, makes it very good in my opinion.