I used an agent and it was smooth. Perhaps it’s not if you don’t use an agent.
I was warned that it may be an extra 2000 to re-enter depending on the official on duty but I wasn’t charged this in the end. So I probably got a bit lucky
the first 90 day report has to be in person, so you will likely do it 1-2 weeks before it’s due. Your 90 days start from this date. Therefore your border bounce will be at around 166-173 days, rather than 180. Otherwise you will need to do another 90 day report to be compliant/ avoid a fine.
i’m not sure farang are so strange looking to officers who see thousands of farangs every week. Perhaps it’s just the land of smiles and they are being kind