Their interview with me was not bad, just confirming my work, friendly. Yes, you need to be on point with paperwork but it is not on par with Malaysia or Tokyo. I know several Tokyo residents like myself who chose to get their DTV from Taipei over getting it in Japan.
Laos requires 3 months seasoning. Malaysia infamous for being strictest for DTV approval 6mths of booked accommodation, 3-6 months seasoning needed. Japan is very demanding as well, as a resident of Tokyo I chose to go nearby to Taipei to get the DTV. Tokyo embassy seems to be issuing METVs for DTV applicants. Fukuoka and Osaka are easier than Tokyo. Vietnam, Jakarta, Manilla are friendly SEA embassies and have approved with just the final balance of 500k THB.