I could only recommend this place. The apartment is spacious and hell and quite well equipped - you can find anything you need for one comfortable stay.
It is very clean and well decorated. The place is quite silent, almost no street noise. There is a huge balcony with amazing view, ideal for coffee at the morning or lunch/dinner. Very close there are tram/bus stations to the center. Marcela is very kind and helpful. You feel like at your own apartment. We had a lovely stay in Prague.