Just beat the game, took me 56 hours. I explored every detail and completed every quest, sidequest and point of interest I came across. I had an awesome time playing it, the graphics, sound, new augs, and the Prague city hub are all stellar. Only had one crash to desktop, some minor graphical glitches but overall it felt super polished. Great performance at maxed settings at 4K too.
Definitely some issues with the story though, it felt weird that augmented persons went from being the super-rich in Human Revolution to suddenly being completely destitute in MD. I know they have an explanation for this but it still felt disorienting. Also, I guess they had no choice once they decided Jensen would return... but somehow they've managed to cheapen the great ending from HR by pretending it didn't happen. Jensen should have went down with the ship at Panchea... but since they brought him back somehow they didn't give him any story in this sequel... Rock Paper Shotgun nailed it with their article about Jensen not having any story left to tell and that's evident in Mankind Divided. HR was his story, it's like he's a walking corpse now in Mankind Divided with no life and no personal connections to this world. Odd...
And then lastly it just felt like the stakes were considerably lower than in HR. But I still thought MD was satisfying and obviously 56 hours is a ton for any game of this nature. I broke into every room, building and safe I could find... had I skipped many of these and completed the game at ~25 hours then I could probably understand why people are upset. Steam says HR took me 38 hours, I guess that makes MD a huge value!