We had an overnight. The staff is professional and helpful. It is not like a 4-star city hotel, but good enough if you don't like to spend all of your time in the room. Our standard room was not so much spacious. The location is central, just opposite of famous Zamecke Lazne (Castle Spa). If you travel with your car, they offer you an open parking place with reservation for a very reasonable value per day; you have to walk 2 minutes only.
The hotel itself has a good restaurant, but if you prefer to dine outside, it is adjacent to the awarded best restaurant(Michelin recommended, French style) on one side, and to the one of best recommended Czech cuisine restaurant with eco/good value on the other side; so dinner is not a problem.
I recommend you to take the breakfast in the hotel, as they have great breakfast with many varieties.
Overall very good price/satisfaction ratio, definitely would go for my next visit.