Both schools I have taught at have been 'training facilities'. They seem to focus both on having fun and educating children. The parents want to see progress in their children's English, and the children want to have fun. There is nothing wrong with having fun while learning. A critique I got during my first few months was, "well, at least the local teachers aren't complaining you're not teaching, but you could have a bit more fun in your classes" and I have improved in that regard. During my first 2 years I also taught at a public school, for 4 classes per week. That was a great experience. Based on what I've seen on this job board, I can expect to teach at a public school again :)
By the end of this contract, I will have been teaching English (in China) for 5 years. My first year was certainly the roughest. I have learned to think on my feet. I have learned how to exert some semblance of classroom management. I have much to learn, but I know much more than many. Experience, is golden.
While I will travel, explore, and grow to love Vietnam, if given the opportunity to work there, my first priority will be my students, as always.
As for training, I've sadly not gotten much. But what little I've gotten, I've tried to get the most out of.