I'm about 2 hours in now but barely scratched the surface.
Off top this isn't some crazy re-imaging of the watch dogs franchise.
Same mechanics same game play. Just expanded.
However so far it definitely is shaking things up. So far they at least seem to be mixing things up a bit. The way missions are delivered isn't the same old ubi formula.
The biggest improvement so far is the game has a sense of humour and right away the characters are better.
Just did the side mission where you rip off the martini skhreli (spelling?) parody. The first game needed this levity.
I think if you liked the first you'll love this one.
This isn't a revolution more of an evolution for the franchise.
I'm playing on hard and already finding the stealth takes a lot of patience.