Mermaid hotel is my new regular hotel in Bangkok.
The hotel is conveniently situated between BTS stations Asok and Phrom Phong, and close to Sukhumvit MRT. New Emsphere is very close, snz there's lots of restaurants and shopping malls in both directions.
The hotel has comfortable large rooms with very soft and nice bed, good pressure in the shower and a chair to relax in. It's not fancy but comfortable.
Staff is very nice and helpful.
I would strongly recommend a trip to Benchakitti Park if you have time. Food court at Terminal 21 is exceptionally cheap, but bit chaotic, but an experience.
Transport is easy with BTS and MRT. It's a big plus that the MRT now takes creditcard so you just need to tap. Unfortunately the train from the airport and BTS still only take cash.
I had good stay and will stay again