In my limited experience, one issue with the modest hotels in BKK is the lack or inconsistent housekeeping. Now, I am a big boy and can clean after myself. But I always run short with clean towels. I need to have three clean towels per day. One for me. One for my date. A third one if I get frisky and decide to have a three way or go out later to get another date. If I don’t have three towels, then my plans get disrupted ( I know, it is silly but I have OCD). Sure, I can always call the hotel manager and ask for towels. But I don’t want to have this discussion every day. Same with picking trash
On the other hand, the brand hotels have a consistent housekeeping schedule every day The fancy ones even come twice and set up your room for sleeping early evening