I've been playing experimental for quite a while now, the first and most radical thing I've noticed, was that the character movement is now much worse. You can't turn normally, feels like your character is sliding and when inside a building, you get stuck on many surfaces and sometimes you can't even navigate between rooms and fail to get out of them, as you can't turn normally.
I think the character movement was just fine in the previous version, I don't think that this new movement system should be implemented like this.