My personsl experience.

OK just flew in on 60 day visa exemption.

The landing card completed fine.

I was questions by the IO on how long I was staying.

They asked where I was going and I presented an invitation letter from my fiance detailing where i would stay and scans of her address book and her identity card. They gave a little nod and finally checked where I was staying that night before my flight to phangan in the morning. Then stamped it.

Overall about 3 minutes, but I believe facilitated by clear paperwork.

The adage better to have it and not need it than need it and not have it.

Fir reference I spent 39 days in September to October 2024. And 30 days February to March 2025 before this trip on may 15th.

I have a 52 day trip planned for September but I am going to apply for a proper tourist visa as it may save hassle with visa exemptions

Interesting experience just had at immigration at BKK airport, flew in first class with China Airlines so they gave me a VFS fast track pass that I used, 6 IOs 4 of them female 2 male, was trying to walk slowly as the male IOs had one person each being processed, so got waved over, she looked at my passport and didn't like what she saw, I was coming in on a non immigrant business visa, however she called one of the supervisors over, then fun and games started, they asked me "you work?" I reply "yes on this visa I start working" but they were more interested in my past visas, as I have 5 metv back to back and about 7 visa exempt on my passport, they kept on asking "you work before? and I kept on saying "No! Non-work before, holiday!, But now start work as I have business visa, Anyway half an hour later they stamped me in, what a nightmare, I knew DMK was bad but BKK I think are cracking down or questioning people who have been here on tourist visas for extended periods of time, just thought I would share