We had a completely marvelous stay at Jakub and Boris's "Crazy Horse"! And we were there for 10 nights, so we experienced it over all days of the week, and during everything from an intense heat wave to chilly summer rain. It was wonderful under all conditions. During the heat wave, you would never guess it from the cool and shady deck surrounded by the gorgeous Japanese garden. We LIVED out there when it wasn't raining. And at night, the tall fan did a great job of keeping the bedroom cool and comfortable. During the rainy days, the huge windows provided plenty of light and a beautiful view. The apartment is truly exquisite with the soaring ceiling, interesting art, and adaptable lighting.
More generally, the place is very quiet at night, which made for great sleeping. Also, we loved the neighborhood. It is a "real" neighborhood where people actually live yet it is only a 10-minute tram ride from the Old Town with its beautiful buildings (and millions of tourists!). We enjoyed lots of traditional sight seeing, but were always so happy to come "home" to Zizkov with its many small bars and restaurants.
Finally, Jakub and Boris are excellent hosts. The check-in and communication were very smooth, start to finish, and Jakub welcomed us with about 30 minutes of local tips, places to see, places to eat, etc. etc.
As you might imagine from this review, we will absolutely want stay in Crazy Horse anytime we are in Prague --- which we hope is soon!