600 pounds is certainly a lot of money but I think that whether this price is acceptable or not depends on the perspective.
If a billionaire who can easily afford everything that comes to his mind wants to stay there then why not? When booking a room at the Mandarin Hotel he'll be sure that he gets highest quality service and that he won't have to worry about anything. On the other side if 600£ is half of someone's salary then this person would be crazy to spend it in one night.
As I said earlier our view on money is relative and it's impossible to decide for all people if a thing is good value for money or worth the cost or not.
