I really liked the premise of the book. The maybe sentient alien ocean and isolated scientist interacting, is just a really good setting to explore characters. And while I love detailed and thorough worldbuilding, the chapters about the research history read like a physics textbook and dropped way to many names for me to follow. The super detailed descriptions of the ocean's visuals also lost me a bit, it was just too much detail for me to imagine.
The more character and dialogue heavy chapters were fun, tho. My personal favourite was Rheya (or better, her copy). I actually think, this whole story from her POV would be a way more interesting horror read.

I very much liked this book. I loved the madness of the conversations and the human like reactions to what was happening. It's hard to get into, and the middle of the book is very dense, but it's an interesting view of humanity.