Personally, I feel good I have been a tutor here several times and was introduced by my friends. I have been a part-time teacher here since the summer vacation. I feel that they have not made some promises to us alone or to their parents. It gives me a more formal feeling. I have been engaged in education in this field now. As for the landlord saying that others are dishonest, is it because he is not a qualified teacher in teaching, so he was punished by the educational institution? So if he complains, as far as I know, their educational institutions are generally quite trustworthy as long as the teachers are serious in class and responsible for the students. Alas, personal advice, I think the landlord should consider it. Your friend recommended you to go. Your friend must have recommended you to go because he thought their educational institution was ok.