Had to spend 1 night last September. I didn't like it very much. In mid-September, the room was very stuffy, even with the window open, there was no air conditioning and no ventilation system at all.
I'll start with the positives: 1. It was very cold in May, it reached -2 at night, we didn’t feel it in the hotel it was warm, in the evening it was comfortable in a T-shirt, it turns out that the heating was turned on.