you get 5 years, can stay for 180 days , go come back as many times as you want , get 180 days. If your there 90 days have to report like any visa. They said I paid for 365 days of lessons.
I'm in Hanoi waiting for mine, it's supposed to be fastest, easiest, along with info, can stay in Bali. 310 USD . I chose a Muay Thai school in Chiang Mai , it makes process much easier, faster I've been told.