The hotel itself was gorgeous and the staff very friendly and helpful. Their training had serious shortcomings for a hotel of 5 stars and the supporting services were inadequate. On the first night of my arrival I advised the front desk that heating did not work and that there was no wifi network in my room. I stayed two nights and to the time I left there was no change in these issues nor an explanation from the hotel.
I think heating and wifi are essential in a 5-star hotel and should not even be an issue for discussion. There was an obvious failure on these points.