We had a great stay at Anna's Apartment! Although we were late we were welcomed friendly by Alena, her assistant. The room is perfect and very clean. (i have to say that we were only 2 people but I think also for 4 people is enough space)
And it's location is perfect! It takes indeed only 30 seconds to Old town Square! But don't trust the map below, it's totally a different place!!
However, as it was very hot when we were there, the missing air-condition was not really comfortable. But all in all I can really recommend this Apartment! :)