Started up the next game on my list, "Final Fantasy XIII". If I finish this one, I'll have played all of the main-series single-player Final Fantasy games, meaning that I'm not including sequels or spin-offs on the list. Just in time before 15 comes out, not that it makes a difference since I don't own a PS4.
Considering that I had just finished 12 before playing this one, I can see the complaints regarding the linear level design. I'm five hours into the game, and I've only seen one area that wasn't just a straight hallway. Yes, there are occasionally turn-backs and a couple splits, they're only used for hiding items. What was particularly painful was one early area where you activate a switch, and it creates all of these labyrinthine paths that connect to the area you're at, and it looks like you'll get a real dungeon area. Then you immediately swap viewpoints to another group of characters who are in a linear path. Finish their section and swap back to the first guy, only to find that he navigated all of that while you were gone, and you're in another straight hallway.
I've gotten the first upgrade to the Paradigm system. I'm realizing that it's basically a way for the game to incorporate gradually-increasing level-caps more than anything else, to prevent you from being too overpowered. I fought every enemy that was in my way, and ended up maxing out all of my characters at one point, so it looks like grinding isn't going to be a thing, or at least not for a while.
I'm at the beginning of Chapter 4. Do I ever get to pick my own active party, or is the entire game going to be "Use these guys. Okay, now use these guys. Well, this one left, so you're left with these guys." for the entire game? Don't get me wrong, I'm enjoying myself, but I can see what all of the complaints about this game were coming from when it first came out. I'll probably pick up the sequels when they go on sale at some point, and from what I've heard they're a lot better and address most of the complaints that this game has.