I like the new biomes (and Cavern is yet another much better alternative to the Clock Tower), both boss fights are a lot of fun.

But I am seriously knocking off half-star only because of this damn enemy in the Astrolab, this dude with a book. If it starts attacking you, it just always floats above you, with no way of hitting it depending on your arsenal. What an insufferable enemy that was.

A bit lame that the final final boss can only be fought through 5BSC, but the accessibility options mitigate that a bit, and the right Aspect (which only prevent gaining new Boss Stem Cells and the no-hit achievements) turns it into a comfortable experience.