We absolutely loved staying at German and Elena's flat in Prague, and they were terrific hosts! They were incredibly responsive and so easy to communicate with.
The flat is set up so nicely that we were able to live there very comfortably during our two week stay. German and Elena have two flats side-by-side; we were in the one bedroom and there is a three bedroom right next door.
The location is terrific: Vinorhady is a lovely, quiet, green and very friendly neighborhood with lots of pleasant restaurants close by (including a tiny cafe just downstairs). Two of the three Prague subway lines, and many tram lines, are just a few minutes walk from the front door, so tourist sites are easily accessible but you can leave the crowded streets of the center city behind to relax "at home."
Tips: Take the Taste of Prague food tour to get perspective on local cuisine and to get recommendations for where to find great food. Go have a Thai foot massage after a long day of walking (Prague has cobblestone streets -- good shoes are a necessity) at Tawan, just around the corner from German and Elena's flat.
We hope to come back to Prague again, and would definitely stay here again.