Well I finally beat it.
I enjoyed the story a lot. It wrapped up pretty nicely at the end I thought, for a Kojima story anyway. Definitely not story of the decade or anything but I recognized what it was going for. At least it tried something new I guess.
By the end, the fighting mechanics were pretty fun too. Fighting MULEs and BTs with the wide variety of weapons surprisingly offered a fair amount depth. They definitely could have done more with MULEs (instances of them ambushing you on the road a la Red Dead Redemption 2, or attacking prepper outposts, or something more coordinated than just standing around in a field all day). Ordinary BTs were just an annoyance by the end, but the summoned minibosses were pretty fun to fight, just wish there were more variety there. I like that you go from running from the spoopy ghosts, to intentionally summoning the big bads so you can farm them for resources. Power progression feels very natural.
Working with the unseen larger community to develop the road works, bridges and zipline systems to go to nearly every where on the map was a huge time sink. Climbing up huge mountains in the middle of a blizzard, can't fucking see shit plus goddamn ghosts, all to plant a zipline anchor, and then start the trek to the next mountain top to connect it, figuring out where the fuck I am and where I need to be to continue the run. I could probably play a game just based on this mechanic. The exploration was wonderful, I really hope they do more with this engine (same one used for horizonal zero dawn) because it's gorgeous, and stable, the entire game I experienced 2 crashes.
I like how after you beat it, you can continue messing around, though I don't think I will. I did everything I wanted to do in the game before the end, took me 110 hours according to the game timer. Roads all built, tech all researched, ziplines to everywhere, almost every prepper at 5/5 stars. Fighting MULEs and BTs doesn't have enough replayability.
All in all, I liked it a lot. Not my game of year but definitely worth the price of admission. I could see why most people won't like this game but unfortunately it's not really a game you can gauge just by watching it, because the atmosphere is about 90% of the draw (for me). Even an hour and a half in I didn't think I was going to finish it because the gameplay wasn't doing much for me. But when Episode 3 opened up a few hours into the game, I completely changed my opinion. I ending up finishing it and I rarely finish single player games.
If you're curious about it I would wait til it's on sale, just get to episode 3 before you decide you don't like it. It's got a lot of flaws for sure (I agree with almost all the cons people list about this game) but I think the overall experience makes up for them. At the end of the day it's nice to see an interesting, new IP. I hope Kojima manages to shit out more stand alone story based games, hopefully more coherent ones with less blatant advertisement.