[Ganjasaurus Rex]

I have known literally hundreds of ESL teachers in my time in Asia, and while i haven't done it myself, i feel confident in warning you --based on their stories-- that you often don't get what you think you're getting. Make sure ALL their promises are in writing, and even if they are, you'll probably have to fight for your "rights" on more than one occasion.

Also, budget for emergencies. This kind of travel is complicated and things happen. Make sure you have monies to cover those situations.