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
TLDR : Answer Summary
The author shares their recent experience entering Thailand on a 60-day visa exemption. They were questioned at immigration about their stay but had proper documentation, including an invitation letter from their fiancée, which seemed to facilitate the process. They emphasize being prepared with clear paperwork and mention their previous trips to Thailand. Other comments include contrasting experiences of different travelers, with some noting that immigration seems to be tightening up. The author plans to apply for a proper tourist visa for future travels to avoid complications.