Experience with ED visa application in Ho Chi Minh city, Vietnam.
Handed in all the documents the language school gave me, the filled out application form with a recent passport picture and a local guarantor, 80$, a copy of my passport as well as my German passport yesterday in the morning. After the guy took a closer look at everything he handed me a paper stating what I applied for, my name and when to come back to get the result, which was next working day.
So just this afternoon I got my passport with the ED visa inside. They will write a remark with the name of your school as well.
Hope this will be of help to someone, I can highly recommend the Embassy in Ho Chi Minh for tourist visa as well.