My husband and I spent 12 days in Zofie's apartment and loved it. The neighborhood is great--quiet but still close enough to walk to the Castle and even to the center. The Petrin tower is also within walking distance. There are plenty of small grocery stores (and a Billa not too far), bakeries, and restaurants. We especially loved La Strada--really great food just a few blocks up the street. The public transportation is super efficient too, so you can get anywhere you need to.
The apartment itself was beautiful and clean, and the kitchen is fairly well equipped. It's maybe not that well suited for a longer stay (there were no extra towels or extra linen), but we made do. By the way, the bed is super comfortable!
Zofie responded to our questions very quickly and gave us helpful advice. We were late when we arrived, but someone was still waiting for us at the tram stop to let us in.
Overall, we had a great time, and we highly recommend this apartment!