I stayed here for 10 nights and I have nothing but good things to say. The location is simply unbeatable. It is a 2 minute walk to Old Town Square. Communication between the hosts was extremely easy they answered questions clearly and fast. Beds are comfortable, kitchen is small but usable, bathroom is also small but I had no issues and I am very tall. The bar below is great place to grab a beer and the convenience of having a restaurant below is also wonderful. It can get a little loud because of the bar and restaurant, it did not both me at all but if you are a light sleeper then elsewhere might be a better option.
If (when) I am back in Prague I will definitely look to stay here again.