I'm pretty much on the end stretch of the game now (I think).
What a ride its been, I honestly don't know how any game I play next is going to measure up. I may just have to start this again on NG+ and maybe go through as a different build. I did use online groups and guides so I've seen most of what the game has to offer (in terms of side quests etc). Amazing really - I found some of the side quests to be the most epic parts of the game, and a lot of people could miss them out entirely!
It has been rage inducing just a few times - and this is coming from someone who has finished all the other games in the series. On the whole though, I think I'd put this down as my all time best game ever - maaaaaybe just possibly tied with Resident Evil 4. It's an absolutely astounding achievement - I still can't quite fathom the scale of the world they've built here. Yes it doesn't have much "interaction" outside of hitting things with your sword, but the variety on offer and the way it's all seemlessly stitched together is nothing short of jaw-dropping.
There are only a handful of games that stand out in my mind so vividly and have had such a big impact. This is literally the kind of game I would have dreamed of playing when I was a young lad (way back in the 80's). I'm a lot older now and it takes a lot to wow me, but hats off to all involved, it's been a pleasure and a privilege to play something so brilliantly well designed and executed.