A super solid textbook! George Trombley and Yukari Takenaka have done it again; they've made a Japanese textbook that is really fun and effective.
I think this textbook moves at a good pace and the integrated workbook section really hammers home essential concepts so they stick. One of my favourite activities is the conversation creation! The conversations can't be about anything, they need to stick to a vocab group and demonstrate the chapter's grammar points. I liked being able to flex my sentence creation muscles!
This textbook also teaches "informal" or "plain" verb forms, which is neat! Understanding those verb forms unlocked all the informal conversations I hear while listening.
This textbook has a noticeable amount of typos, but it's nothing that impeded my learning process. One typo meant I answered a question incorrectly, but the others were things like mistakes in the header.
I've moved onto book 3 now! A few months ago I wasn't sure if I wanted to finish the series, but now, I am absolutely determined to finish them all. My Japanese progress has really improved since I buckled down and decided to do a few pages of JFZ a day.