I played through the first couple missions they have in this and it...feels a whole lot like any given mission from the first game.
But I thought the shooting just overall felt a little better and the armor system made it feel like I could have an actual firefight by myself instead of peeking out killing one guy and being absolutely lit up in the process.
Also pretty impressed with how well it ran on my now very aging PC.
I'm enjoying it way more than I thought I would coming out of Division 1. It's very much the same game, but everything feels *better*. Not just visually, but as @efesell said above, the shooting feels better, the actual encounters are more interesting, and the NPC AI seems much better than the previous game -- I've definitely noticed the enemies trying stuff like flanking me that I never really noticed in D1, and the friendlies are smart about placement too. It's a neat game.
@tinygallon I had that glitch as well, if you go to Uplay, right click the game, and hit "verify files" it'll push out a microfix for that.