We had a wonderful stay at Magdalena's. Pictures are very accurate and apartment was clean and comfortable. She is a very gracious host who patiently waited for our delayed arrival and left us pastries and some basic groceries. When I couldn't figure out how to use the washer, she even came over at night to show me.
The location is in a quieter area of Prague, but still close to everything. However, if you struggle with walking, especially up hills and on cobblestones, this may not be a good choice for you. Nearest tram is several blocks away (10 minute walk). Otherwise, I have no complaints.