Alright some basic info for those reading this:
I have been following "Bioshock: Infinite" since it's very early development, and decided to wait on picking it up to see how it was going to turn out, and will be getting it shortly. I did want to address some of the complaints in this thread though and perhaps clarify a few things, which oddly I can, since it seems a lot of people weren't following the pre-release development. This thread has a spoiler warning so I doubt any of this will be a huge thing.
What you should have known going in:
From pretty early on, it was made obvious that this was going to be even less RPG-centric than the previous Bioshock entries as they were making promises of streamlining, focusing on action, and the "coolness" involved in ziplining and such, along with gameplay footage showing that it was a little more action oriented than the previous games which involved more careful creeping through cooridors and/or setting up ambushes and such (or at least the way most people played). This was one of the things I expected, but was waiting to see how it developed. I'm not sure if claiming things are "dumbed down" compared to Bioshock can be considered a fair complaint at this point, because it was telegraphed a hundred miles away. I don't much care for it, but you take what you can get. I think the whole "1999 mode" was intended as a sort of compromise for those who wanted a more difficult experience as well.
To be fair while I used the term "RPG" since it'se largely associated with this, I honestly don't think that is a good term for it. At the end of the day Bioshock was basically a survival horror game, going with a grim enviroment, and making part of the game the scavenging and management of resources. On a lot of levels I think it's fair to say that Bioshock was like say "Resident Evil 1 and 2" where Infinite is more like when the series once it hit 4+, albiet it changed enviroment in doing so, going more towards science fiction than aiming for the same kind of horror.
-
When it comes to the plot, I admit I'm somewhat disappointed with the ending. I waited for spoilers largely because I heard ahead of time the ending was going to be craptastic. The "Infinite" part of the title referring to a time loop since the developers couldn't think of anything else to do with it was an early rumor. Shades of the old "Critical Miss" comic about how "Give her a paradox, bitches love a paradox" which is pretty much exactly the kind of game writing we saw here. That said apparently it wasn't so bad that it wound up being universally reviled to the point of ruining the rest of the game, which is why I decided to give it a go. That said, those complaining should have expected something like this, since it's been a concern for well... a long time.
A side point to this is that "Bioshock: Infinite" was also designed to pimp DLC, being one of the games going so far as to try and get you to pre-order it. I'd imagine what parts of the story are mostly understandable but have huge holes in them were designed to be filled in with DLC. Say a campaign where you play as Comstock or something similar which answers a lot of the questions by showing certain events from that perspective.
That said the whole "Booker Is Comstock" thing wasn't really a big twist, I'm pretty sure a lot of people following the game knew that one to begin with. Indeed I'm pretty sure the devs spelled it out at one point. I know one other poster here mentioned figuring this out despite not really following it. In my case I can't remember where I heard it, but I've though that the pre-order "Comstock Shotgun" pre-order item was kind of clever to begin with since Booker having it made an odd kind of sense since he's Comstock... etc... Indeed I've thought it was so well known up until this thread that I figured that was kind of the point of calling the item that, as opposed to just giving him a non-referential shotgun.
That said the biggest thing I'm happy about is that apparently Elizabeth wasn't an annoying AI partner, which is pretty much what I was primarily concerned about and why I decided not to pre-order, and wait and see how things turned out.
The gist of this post is that some of the quibbles people are making are things they probably should have expected unless they bought the game in a total blind. We also should all have known (or suspected) the ending was going to be a mess, the big question was mostly whether it was going to be a game ruining one like Mass Effect 3 or not. Mostly it's just an attempt by writers out of their depth to be profound in the most lazy way possible by rendering everything pointless with an infinite paradox. Someone mentioned it invoking memories of "Donnie Darko" and I guess that's kind of the problem, it would have been awesome if "Donnie Darko", "The Butterfly Effect" and a hundred other people hadn't done the same basic thing. Which is kind of the gist of the old "Critical Miss" strip I mentioned. In the end the final word on the "Infinite" ending I guess is that while some people really like it, it mostly gets by as being bad, disappointing, but inoffensive, much like most attempts with games that write/design themselves into a corner and start groping to find some way to end on a profound note before puking out the Paradox card.
Such are my thoughts from all that has been said and done. I'll probably start my own thread once I play/finish it if I wind up with radically differant thoughts afterwards.