I just stayed for one night. Which was enough for me.
Be aware this is not part of the official Rainbow Resort Hotel. Upon seeing my confirmation, the receptionist told me my room was an Airbnb. The building is a hotel as well private rooms that are rented out.
The room itself was very spacious, 70 sqm with one bedroom and a living space. It had obviously been repainted recently (it smelt a fresh paint) so the walls were clean. Air conditioning and basic amenities were provided.
The building itself, has seen a lot of wear and tear. If you’re on a budget and want a spacious room it will meet your needs.
For the price I think it’s quite reasonable if you’re there for a short stay.
The hotel is next to a beach, and a swimming pool downstairs. There a few restaurants across the road.