It's pretty weird coming back into D2 having not played it all, but having 1000+ hours in D1.
Lots of nice improvements to the missions, UI, characters, graphics look great. Forgot how great the sound and gunplay is still. Playing the story it feels like a proper Bungie game, suitably epic so far.
Feels like there's a lot more to do than D1?
With the recent Forsaken update there is a lot to do, almost to much. You have the usual powerful engrams to collect, the various bounties/challenges and their is the Dreaming City where by all accounts there is still a lot to unlock that we haven't seen. And to finish it off the raid, which reminds me a lot of the Kingsfall raid (I never did Wrath of the Machine, so can't comment), having only done the first boss encounter.
The Forsaken exp has definitely done a lot to improve what was a mediocre first person shooter up to this point.
edit** Oh and almost forgot, Gambit .