Originally Posted by
SK AAR
There will be plenty of nice hotels at that price range in May. Rather than seeking recommendations (Tripadvisor will be your friend for that) I would focus of which area to stay in (Silom/Sathon, Sukhumvit, Banglamphu etc - some research is needed for that).
TripAdvisor is the last place I check for hotel recommendations. I generally rely on FT nearly exclusively.