Thing is, it started off trying to be fairly realistic. If they had started out from day 1 explaining that these nanites were implemented to collect and redistribute power with some not fully understood tech that might be supernatural or alien, then it would be easier to just sit back and enjoy. But instead they keep everything secret so they can pull out some new WTF whenever they feel like it.
Take the basic premise and characters, and stuff it in a mind-warping anime, and it would probably work well.
But as it is, they use real actors... who ironically seem to lack energy. And the plot seems to have no real direction (Turn the lights back on? How is that supposed to work after 15 years of neglected infrastructure?). Whoever writes this stuff just wants to yank around the audience. And it probably will get canceled without a proper ending.
From my perspective, half the fun of watching any sifi-ish show is exploring the universe they have created, and too much secrecy and inconstancy ruins it.
On the brighter side, they nuked Atlanta. :)