Agree, you definitely want to ask questions in your interview if there is some stuff that goes unexplained. You gotta be sure how much you’re making and what your hours will be like before you begin. That being sad, many ALT companies can spring stuff on you anyway. I had the experience of teaching in one city and having my schedule all set up, only for them to suddenly make my main school in a completely different one, thus ruining the commute I had planned when I moved to be nearer my other schools. It’s crazy. Good luck!!