Just entered with my DTV which was approved back in December last year, the only question asked is if I was only one person, very easy, smile, wai and respect the officer, you'll have no issues whatsoever.
TLDR : Answer Summary
The original poster shared their recent experience entering Thailand with a long-term stay visa (DTV) that was approved the previous December. They mentioned that the process was straightforward, with the only question being if they were traveling alone. Commenters inquired about the steps to obtain such a visa, specifically for a Swiss individual wishing to stay for 5-5.5 months without needing to do border runs, and asked about the need for return versus one-way tickets.
DTV VISA RESOURCES / SERVICES