Just an update for any new members in Chaing Rai. Just completed my first application for the 1 year extension (married to thai) at the office in Central Plaza and the experience was amazing. The immigration officer was very pleasant and explained everything clearly. Was in and out in under 1 hour and that also included the interview with myself and wife. I will be going back in 30 days to get the final stamp and I am looking forward to the visit. We'll done immigration this was a great experience especially when compared to dealing with South African authorities.
TLDR : Answer Summary
The author shares a positive experience applying for a 1-year visa extension based on marriage to a Thai citizen at the immigration office in Central Plaza, Chiang Rai. The process took less than an hour, including an interview, and the immigration officer was described as pleasant and helpful. Other commenters express gratitude for the report and share their own positive experiences in Chiang Rai and Mae Sai.