This apartment had everything that you want for an extended stay. The kitchen is well equipped and modern, the bathroom has a terrific shower and washer, the living room has a modern TV that receives both Polish and English channels, and the intranet works well. The rooms are nice sized. The apartment is close to the train station, the trolley, and a grocery store, and there is a quick market very close by. At the same time, all the restaurants of Dulga Street are right there. It is just a great location.
Almost everyone will be comfortable there. People who can't climb stairs should not rent this apartment. And there can be noise that comes from the street -- there was a birthday party at a local restaurant one night (out of 6) that was a bit loud. (This is only an issue for the living room -- not the main bedroom.)
You have to remember to take the key to the courtyard -- we came back late one night and the door to the courtyard was locked; but we had the key so it wasn't an issue. Otherwise, you just have to remember the codes to get in.
We would definitely come back to this apartment if we are in this area again.
We had a lovely stay here. I highly recommend it.