Here on hotels.com, it is stated that housekeeping will be done every day. I slept there two nights and no one came to clean my room.
Whilst booking, I had kindly asked for a smoker's room. It's okay if you don't offer this. But it's not okay to not answer at all to my request, and once I'm there, to put me in the upper floor in a room which was the most far away from the stairs.
Another negative point: There's no elevator available.
Toilet in the room: very narrow between brick wall and shower glass wall. If you aren't skinny, you'll have a problem to sit down and do whatever you must do.
TV: Only Polish channels and no internet connection to the screen is available (i.e. no Netflix, Prime, etc.).
Bar prices are quite high, to not say abusive: A 15 cl glass of wine over 6 €, an Aperol Spritz (with lemon instead of orange slices) over 8 €, the cheapest 0.5 l beer for 5 €.They benefit from the fact that there's no other bar nearby, reachable in a walking distance.
Food prices in the restaurant aren't cheap, but for the excellent quality they serve it's still okay.
The breakfast service, however, was very good!