2 parts to this review: location and experience.
Location- as many other reviewers have stated, you can not be in a better location than the Queen Bee house. It is right off of the Charles Bridge next to multiple bars/shops/restaurants. The apartment was clean and spacious, and provided all the amenities we needed to feel comfortable- coffee, french press, plates, utensils, cream, hair dryer, shampoo... The cafe downstairs is a great place to grab casual drinks/coffee throughout the day. Be aware that the apartment faces a hostel, and is right down the road from a pub. There might be some noise at night if you like to sleep with the windows open, but it wasn't a huge issue for us.
Experience- I can not say enough good things about my experience with this airbnb. As we arrived at the airport, I received an email from the host outlining check-in/check-out procedures, as well as tips around the city to allow you to see the best of Prague (what time to go places, which entrance to use to avoid lines). Tour guides, maps, and metro information were also provided when we got to the apartment. We were picked up from the airport by a friend of the host's who was very nice and provided background about the apartment and building (such great history!). The initial email combined with the multiple tour guides really allowed us to feel at home in Prague and explore like tourists, while still enjoying some local places. We went to the Bakeshop cafe, suggested by Lenka in the email, the first morning in Prague and went back almost every single day!
I will definitely recommend this apartment to everyone I know when they travel to Prague.