With respect Tawan has long ceased to have that informal charm you refer to. It certainly did in the early 2000’s. It gradually deteriorated with so called boys tattooed, overweight with their heads in their mobile phones oblivious to all around them.
According to the TripAdvisor reviews Blue Cabin sounds ideal if you don’t mind non existent housekeeping, ceilings that are only 1.7m high, no soundproofing, beds as hard as concrete and being eaten alive by mosquitoes.