Wouldn’t say easy. On the train now from Padang Besar. They had no idea what my Visa was. Almost didn’t let me in with it. Basically had to explain how it worked.
In my experience. Immigration has barely even seen the DTV Visa. Lady asked her manager what it was and stamped my passport. No additional paperwork asked for or required. You have already provided that to who needs it in the request process. If they ask for any banking, they likely looking for baht-persuasion. ;0).