BKK has a lot of different lounges, including 4 locations of the Louis’ Tavern CIP First Class Lounge. The one that I visited was near the G gates, and I used my Priority Pass Select membership to get access.
The lounge that I went to was just a single room, and it felt relatively small. Given it’s location in the airport, there weren’t any views to speak of, and the room felt pretty dark.
The food options consisted mostly of various kinds of sandwiches, along with some pastries, one hot item, one soup, fresh fruit, Nestle ice cream, and yogurt. There was also the typical selection of beer and liquor, as well as a drink called miracle water.
The lounge itself wasn’t very crowded, which is possibly due to the fact that they have 4 of them throughout the airport. Each lounge is open 24 hours, which can be helpful for those odd itineraries, but there’s not really any where to stretch out, so I wouldn’t recommend these lounges if you’re looking for a place to sleep.
Overall, it’s definitely better than waiting in the airport, and it’s a solid Priority Pass-accessible lounge, but it’s nothing special. I would also probably not recommend these lounges for people who are trying to overnight at the airport, as I imagine it wouldn’t be very comfortable.