I love this series and was excited for this book to come out. I enjoyed book 10 but not as much as the rest of the series.  I find Jason to be a great character. I would love to be friends with him. He has also grown as a character over the course of the books, especially the last few. 

Not a lot of action takes place in the first half of the book. However, we get to see how Jason is coping with his cosmic powers and his balancing of his mental state. The book does a good job showing how difficult mental health treatment really is. It's not like physical injuries that can be quickly healed, but a process that has many steps and takes time. At times, he does better, but then something happens and he regresses. This happens in real life as well. However, he's getting better at recognizing situations that lead him to regress and taking steps to get out of them or using coping mechanisms to get through them without breaking. It gives Jason a depth that many Litrpg MCs lack. 

I think the most frustrating thing about the book is that the whole underground expedition wasn't wrapped up, so now I have to wait until the next book comes out to see if Jason comes out on top and with a soul forge. Also I would like to see a bit more progression in his essence abilities, he's been at silver for so long already. I understand it takes a while to progress through silver but I want to see him taking significant steps to level up, instead of crawling.