48 hours without hot water in a canicular Prague !
So, establishment, without nobody in the reception between 20:00 pm and 8:00 am, to avoid if you have (private or professional) appointment where you must arrive "clean" or without smell of sweat, except if you like, you can support, showers with iced water (me, I hate them)
This is a really pity, because there were rooms with a very good location, in the center of the city, at only some steps from the main places to visit.