I know this subject has been talked about a lot so if you are not interested in a FF fan moaning about this game and having a mini-rant, then just scroll down to the next post.
I knew about the negative aspects about this game before I bought it but the linearity is really starting to annoy me. I am just starting chapter 6 and up to now the game really is not grabbing me at all.
I have just finished chapter 5 in The Gapra Whitewood and the level design was awful in my opinion. It is the same thing over and over again, it was almost like a FF version of groundhog day. What really made me laugh was that on the most linear level I have ever seen they even give you light beacons to guide you through it.
I also have issues with the shops at save points and the way that the characters and equipment levels up. I know you shouldn't always compare old with new but the thought is always in my head that the sphere grid and weapon system is much better in FFX. Just as the dressphere system in FFX-2 is much better than the paradigm shift. The level cap and ultra linear crystarium don't appeal to me either.
There are loads of positive things about this game though, cutscenes and story are amazing, characters are really good too. I thought I would hate Vanille after hearing her voice briefly but I have really warmed to her and find her quite a refreshing character.
So to summarise a long and probably boring post

I will still finish this game, but with cutscenes and characters aside, I find the game very average.