I think I'm about halfway, if the total boss count is to be believed. So far there's a lot I like more than Dark Souls, and I'm really super happy with a lot of the changes they've made.
I'm a bit torn on the general aimlessness and more abstract open world this time around though. Much more so than Dark Souls your objective is whimsical, undefined, and the game as a whole more relaxed on where you go and what you do. Delving into the unknown and straying off the path, wondering if you're going the right way, is essential for these kinds of games. But I felt Dark Souls most of the time did a pretty fantastic job of gently guiding you in the "right" direction either by having overly powerful bosses and enemies imply you're in a later game area, the main quest separated into three "acts" of objectives so you had an idea of what you should be doing, and some doors/paths blocked off until you got the right key/trinket/person to open the way. You had plenty of breathing room and were encouraged to explore, but always found yourself naturally on the right path getting shit done.
Comparatively Dark Souls II seems as aimless as you can get. "Get big souls", that's it, and this objective lasts through a major chunk of the game as you eat through boss after boss wondering where you should be going or if you're heading in the right direction. Or if there even is a "right" direction, which there doesn't appear to be. While this seems to be the intention, almost totally disregarding narrative or objectives in favour of a sandbox-like open world of boss hunting with the freedom to kill in any order you want, I'm finding this aimlessness to result in weird difficulty skewering. Like it's super easy to feel the game is following a natural difficulty curve as you eat up bosses in one area, then you realise you missed another area and most of the stuff there is super weak, bosses in particular not all that challenging. Or then a super hard boss is thrown in the mix, and you're not sure if it's necessary to move forward or option or what.
I guess this is maybe the point, the bonfire teleporting encouraging you to do a lot of jumping around, but structurally I'm not sure I like the difficult curve and world pacing as much as Dark Souls, even if I might be enjoying the game as a whole more.