Sarah and Jan's apartment in Prague was everything it advertised, plus more. The location was close to everything so we could just walk to the "tourist" attractions and restaurants. The king size bed was very comfortable and the walk-in shower had great water pressure (something one doesn't take for granted). Though not in the list of amenities, there was a washing machine that helped us keep our packing to a minimum.
There is no air conditioning, but with a fan and keeping the windows open (on the 5th floor), it was really comfortable. It is a bit noisy at night from the cars going down one of the main roads near the apartment. Once it got cool enough to keep the bedroom windows closed at night, it was really quiet.
Sarah was extremely responsive to my multitude of questions and on our last day we were able to just leave our bags in the apartment and then meet one of her friends at a designated time right outside who brought the bags to us. Above and beyond.
Prague was fabulous and you won't be disappointed staying here.