Essentially yes. I would advise not to upload the entire book but a section to work on. You can make it a project and then set a calendar reminder, and hit / create your own structure. You can make a schedule and then do a chapter a day/week type of event.

It helps with speaking and talking. not writing. To me that is ok, I’m stronger learning writing and reading but having the AI enforce me to speak and not be embarrassed is fantastic.

For reference, I’ve passed JLPT N4, and can probably pass N3, until recently I had no true talking or replying experience just reading/writing. Whenever I’d speak, I’d stammer, stutter and overall was anxious. I get it sometimes in English too which is my native language but..

Going back to review previous books, chapters of language books or chapters of children books/intermediate books and manga and set it up as an interactive voice coaching session helped me enforce speaking and communicating in a natural sense. It was what I was doing on italki but then you run into Cost, scheduling and the same spend ten minutes to catch up and review minimum. If you schedule more, 2 hours or such it can get exhausting and can be harder to schedule unless you plan weeks in advance with a popular tutor.

Honestly helped a ton with the minimal amount of work I put into setting it up.