I have Nanos and had Bose for years. Bose is a little quicker and easier to set up. I love both systems. See which you prefer best for your own needs.
Both the Bose and the Nano systems which I have owned all of them require
too many pieces to set up especially using two in stereo. If your
gigging every day & many times twice a day, in and out of venues,...setting up breaking down besides all your KB, stands, wires, mixer, etc, etc, it becomes an annoying burden. I wanna get in and out fast.
For my needs Two good Powered speakers like the yamaha DXR series, or QSC is the way to go setup, simple math,....
2 powered speakers 2 stands....vs Bose 2 subs, 4 poles speakers, which at floor level cannot go over the top of the crowd just sayin'....or Nanos 2 subs, 2 poles, 4 satellites,....If your a frequent gigger I cannot enforce more to really look at these concerns before your purchase to make sure,...and in my assessments using all of these speakers the drop off MYTH is just that. Aside from that they will all do a good job to a point.