I think I'm on chapter 4 now. I'm taking my sweet time with the game though, but I haven't done a lot of side quests. The story is a mess that's for sure, but I'm loving the characters, and the voice acting is surprisingly okay. The world is gorgeous and unbelievably huge if you ignore the technical issues, the game really captures the road trip feeling. The gameplay is very fun, and it can get a little challenging inside dungeons just make sure not to over-level and ruin it for yourself. Most of the cutscenes are bad, badly directed and presented, so you should lower your expectations when it comes to cutscenes, sadly.
I have already said it but the game is gorgeous, literally never seen anything like this before, it really feels like your exploring a living breathing world, the first big town I visited was awesome as well.