ITTT Online TEFL

I took both the 120 hour TEFL & 250 hour TESOL Diploma courses. PROS: The cost is extremely affordable, course layout is convenient and do-able, staff respond to problems/questions quickly CONS: Many jobs prefer in-person courses, not much of anything for job assistance, the 250hr program had several typos/grammar errors and wasn't very professional.
Overall, taking the course can be helpful (esp if you haven&t previously taught) BUT I recommend doing an in-person course for networking, credibility, &the overall experience.