Me and my wife had a wonderful stay in this nice hotel. Located in a residential area of Prague, it is just a 5 min. walk away from the Metro station "Namesti Miru" and also tram station line 22 which takes you directly to Prague castle. The room was big enough and everything was spotless. The Wi-Fi internet is enormously fast and the reception desk staff are really friendly and helpful; almost all fluent in English. The breakfast is also perfect with different choices (fried egg, sausage, butter, cheese, etc.). There is an electric kettle in room which can be used for making your own coffee and tea (teabags and coffee available too)!
The only imperfection would be the unavailability of a fridge in the rooms which I believe can be expected in a 3 star hotel. In addition, the lift was really small and two of us would hardly get into it! To sum up, the Anna hotel surpassed our initial expectation and if I ever want to travel to Prague again, I will make sure to stay there again. Great budget to quality ratio!