Really nice! The studio apartment is exactly as pictured: quaint, cute, and cozy, with a very clean and modern bathroom.
Daniela is quick to respond and help with any bumps that come up. (Do NOT hesitate to text her, she can fix whatever it is or answer any of your questions! We also did not see her.) She arranged for a cab to pick us up at the airport, which was great (though if you call the cab company on the card she left in the hallway, it is about 5 Euros cheaper, which is what we did on the way back to the airport).
Some pro tips: The wardrobe DOES open, so you can hang your clothes in there (which is great, as there is no dresser), where there are also extra blankets. It was warm but never hot--even with damp chilly March weather, we often left the heat off. The mini fridge is in the bathroom (may sound weird, but totally works); other kitchen things are near the microwave, open the drawers. When coming back from the southern or eastern parts of the city, you can get off the tram at Malostranské náměstí, which has many tram lines, but you will have to walk up a lot of stairs and hills from that stop. If you want to avoid walking uphill to get home, take the 22 or 23 (not the other lines) to Pohořelec, though it is a longer ride. It is a very quiet apartment and neighborhood, so if you want to party in the house, this is not the place for you, but if you want a good night's sleep this is an excellent choice.