Very helpful host, provided us with helpful directions to the flat, which is very easy to get to from the airport. Mark's receptionist Karolina couldn't have been more helpful and welcoming, showing us into the flat and giving us lots of personal tips about the best places to eat, shop and things to do! The apartment was described very accurately and we couldn't believe quite how big it was for just the two of us!!! Very reasonably priced for the quality of apartment and the location, which is completely perfect- so close to anywhere you'd want to go in Prague! Had such a wonderful stay here and couldn't recommend the apartment or Mark more! If there was only one minor thing it would be that there are two separate single duvets rather than a double one and as a married couple we're used to having a double but it really wasn't too much of a problem. Definitely stay in this apartment for a stay in Prague.