I used TEFL Heaven to obtain my TESOL certificate in Vietnam. From the start, the TEFL Heaven team was very helpful in helping me make my decision. They followed up with me regularly and helped me throughout the process. They assisted me with all my questions about life in Vietnam and finding a job after the program.
The experience was very well organized and I would definitely recommend them. There's free accommodation during the program and there's a TON of assistance in finding a job after the program is over. Took about one week for some of the students to find jobs - well worth it.