As I have not any experience to stay in any other ...

As I have not any experience to stay in any other 5 star hotel, I can't compare it.
Cleaniness of the hotel and rooms, room decorations, accessories in the room, facilities in the hotel (swimming pool, gym, spa etc.), food quality, hospitality all are excellent.
If you have any doubt in choicing the dishes in your meal, you may ask them. They are excellent in this matter.