Our stay at the Jiri's apartment was very successful. The apartment is not big but cozy with everything one needs to stay a good time. The bathroom has a wide and modern shower. The kitchen is very complete and the bed is comfortable.
About the location. The apartment is 100-150 m to the closest bus station where stop 3 different buses: #207 go to the central square in 5 stops (10-12 minutes) and the frequency is high. The other 2 buses arrive at the coach and metro station (Florenc). Lenka and Jiri answer everything you need during the stay, questions... Via SMS (they borrow you a mobile with czezh sim card).
Highly recommended!
PS: I recommend to the guests exchange money in the banks in the morning because the exchange is a trouble in the city.