Martina's studio is absolutely fantastic and you should definitely stay here if you are coming to Prague. A very easy walk to the Town Center, Old Town and the Charles Bridge. (10mins.). Martina had a welcome packet that was the best I have seen in all of my AirBnb experiences. It was full of tips and information on what to expect in Prague regarding customs, language, tipping, expectations, etc. Of course you can google these, but having them laid out by a local made it very easy to navigate the local customs. Martina was very helpful and far exceeded expectations of hospitality in taking some time to show us some must see places on the map in reference to the apartment.
The Studio itself was very clean and plenty of room for two people to enjoy. It was also in a Quiet/Safe part of town with plenty of great restaurants for a quick bite before heading into the city center.
Definitely bring your comfortable shoes because Prague is a walking City!