Jan was a perfect host! He was very friendly and kind, and ready to help us in every possible way. He changed our sheets and linnen for free, after the first week, and provided milk, water, coffee, cereals, etc.
The wi-fi connection was fast and worked very well.
The apartment is very nice, clean and well furnished. The kitchen has everything you may need (except for a drain for Italian spaghetti...). There are a washing machine, a dish-washer, a vacuum cleaner, a TV set, an iron and a hairdryer.
The flat is very near Prague's Castle and it takes just a few minutes to reach Stare Mesto, the old district, by tram.
There is a minimarket in front of the house, and two more just around the corner. There are also pubs and restaurants in walking distance from the house.
The area is very quiet, however, as the flat is on the ground floor, it is a bit noisy at night, because trams and buses run just outside the windows. Moreover, even when the shutters are closed, the light from the street lamps and the early morning sunlight get through the windows. So, if you like to sleep in darkness at night, it's better to wear a sleeping mask.
All considered, I would certainly recommend this flat for a nice holiday in Prague. Its location and price are very convenient.