It got the job done, but I'll be honest, this rig by itself was probably just a bit too small for the size of the stage (about 25' wide by 10' deep). Fortunately, the stage was partially enclosed in the back, so that helped contain the sound and throw it out to the audience.
I ran the QSC volume at about half of the max. and I probably could have pushed it a little harder, but I didn't want to get greedy. Overall sound quality was quite good after I dialed back the output from the Bass Driver a bit.
In hindsight, I probably should have used a traditional amp & cab for this gig, but I wanted to push the envelope a bit which allowed me to confirm that this small rig will certainly be more than enough to use indoors or on a smaller outdoor stage.
And, I was encouraged enough by the QSC's performance with the bass that I'm going to use it along with an LR Baggs DI for my next acoustic guitar gig. I tried it at home yesterday for the first time and it killed. Crystal clear sound with a ton of headroom.