Stayed here for 3 nights as a literally last minute booking while still in Krakow.
Given the short notice that we gave, to the very polite and helpful lady on the phone, who helped us from front door to the apartment, we were very suprised to see how good the room was.
It's based in a residential apartment block on one of the floors, once you get the front door code you then go to the reception and retrieve your key from the safe and then head upstairs.
The apartment is very spacious and contains a kitchen with a fridge, cooker microwave etc and a bathroom.
The apartment was very clean and good value for money.
It is a bit of a walk to the main square but uber or a taxi are able to take you there for minimal cost.
If your looking for somewhere to stay for a short break then try the Nobel Suites out.
I would stay again.