I finished my 1st complete playthrough after a restart (from ~50% complete game). 40 total hours played.
Brief thoughts:
+++
- Cool, engaging story
- Procedurally generated tactical maps
- More interactive strategic layer
- Diverse squad possibilities
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- New setting & focus on story make the game feel less of an "X-Com" game.
- Timed missions + random spawns + bad luck = some missions are unwinnable (mostly restricted to harder difficulty and/or Ironman mode)
- Game seemed short - despite more missions per month, I completed the game in less than 4 months while completing all research and other projects
- Focus on fast, aggressive tactical gameplay may turn off those who enjoy a more deliberate pace
Bottom line
A worthy successor to the XCom reboot that improves on almost every facet of gameplay. As of right now, though, I won't be spending much more time with this game because of the ridiculous amount of time I spent with the previous one.
I'm looking forward to seeing what the DLC brings.