We stayed at lanta mermaid for 4 nights. Hotel and rooms are very clean, you even leave your shoes outside.
Service is very friendly, manager even remembers the name of every guest!
Breakfast is served to tables and selection is not very vast but quality is excellent.
Lack of pool is only minus in this place but walk to the beach is only about 200m.
Highly recommend especially if you prefer to do a lot of trips and not just hang around the pool on your holiday.
Booking trips is also made very easy for you by the hotel staff.