I don't have any experience with Chatbot tutors, but I have used ChatGPT to troubleshoot problems. Most of the time, it hasn't helped me directly, e.g. solutions were incorrect, weird, or overly complicated. However, explaining my problem was helpful.

I also have experience tutoring struggling school students. The impact of emotional intelligence when tutoring cannot be overstated-- in many cases you'll have to work on improving low self-efficacy. Building a trusting relationship is very important to this process; knowing when to push your pupil or back off is vital to being a good tutor.

Will a great chatbot ever replace a tutor? I don't know.