I had a great stay in Prague at Ondrej's apartment. It is so close to the Charles Bridges! You can also walk to Prague Castle, the Jewish Quarter, and the Astronomical clock. There are some small mini marts near by where they sell some groceries and beer. There are larger groceries stores closer to the Palladium Mall which are also within walking distance, or you can take the 207 bus which takes you right there.
I had a good time venturing off into a Czech grocery store and making my own dinner.
It wasn't a problem for me, but people should understand that the shower is in the kitchen, so if you are travelling with companions you don't want to see naked, you have to plan it out. To fully explain the bathroom situation, there is a door (that remains locked) that leads from the main hall into a vestibule. From the vestibule, there are three doors. The first is the airbnb apartment, the second is the host apartment, and the third is the airbnb toilet with a small sink.
Overall I had a great stay!