We (2 of us) had a great stay in this apartment, it was spacious and clean.
We liked the area as it was within easy walking distance to the Old City and all tourist attractions, yet far enough away from the craziness of all the tourists.
Great bar for food & drinks across the road.
Although construction work is going on outside the apartment block, once inside you don't hear a thing.
Every single person working the front desk were extremely friendly and helpful.
We stayed 3 nights/4 days but never used the kitchen as eating out in Prague is so cheap.
We would happily stay here again when we return to Prague.