So Im a big fan of Division 1.7+ build. In it's current state, The Division 1 is actually fantastic, if you like third person modern shooters. So after a few hours with The Division 2, I kinda feel its ok. I think it's pretty good for launch and fixes a number of issues Division 1 had. My issues thus far with Division 2 are the same issues with Division 1, control scheme and enemy AI. It seems like the Division 1 story is carrying over to Division 2, which is great, but my recommendation would be to buy Division 1 for 10$, try it, if you finish it and enjoy it, buy Division 2. Division 2 plays and looks almost identical.
P.S. this is a RPGish HP shooter, so enemies aren't going to go down with one or two bullets.