Great spot, incidentally located near a super cool resto/butcher shop that I had found online before my arrival. Sarah and Frantisek were super helpful and flexible given my hectic schedule.
Clean, quiet and spacious, this is definitely THE spot to book. Found within the walls of a really cool "carrefour", take the stairs/elevator down and you find yourself in the best part of town! They've even taken the time to create a great and well thought out Prague Primer with places to see, eat and tons of information.
Don't hesitate, this place is for you :)