Very cozy apartment in the center of the city, a minute walk for the main square. Professional approach from the Host and his assistant. In one moment we needed 1 more bed sheet and after we have send them a message they brought it to us in 10 mins. Only less-appreciated thing is that the building, being old, has no elevator and walking to the 4th floor 6-7 times a day is not fun, but it keeps the weight away :)
Anyway, it was really fun in Prague and really positive experience, as it was my first time using Airbnb.
Cheers!