All the comments about Lenka and the apartment that others wrote are right on. I would definitely stay here again. Even though the building is old, it feels brand new because of the recent renovations. The rooms are big and airy. We had some noise from the street at night (given its proximity to the Charles Bridge) but a fan provided enough white noise to drown it out. Lenka couldn't be nicer or more helpful. Her recommendations of the Red Pil restaurant and the bake shop around the corner were especially appreciated, plus her help in getting us to the airport. Make sure you try the raspberry lemonade in the cafe.