Personally, I think an important stat that Italki doesn't show (but you can easily work out) is the average number of classes that one student takes with the teacher. So, for example, have they done 300 lessons with 200 students. That would show that they have not yet managed to get a lot of regulars. One would have to ask why. So do your research and look for the right stats. Good luck! (That said, it's so hard to be a newbie on here in a saturated market - support new people too!) 🤗