I have done one ending, all the side missions except for the brawler thingy, That might trigger some more.
Gigs I have only finished in Watson, played about 70 hours.
I am so impressed about the city, its on a different level from anything else I played of these types of open world games.
The story line was ok, start is decent, but the ending from the point of no return, was very good in my opinion.
But its a shame that it mainly is a solider/ninja kind of thing. But that is also a limitation of the lore, since the NET was taken down earlier in the timeline.
Ohh well, I like it, hope for DLC that is less shoot/ninja focused.