The apartment is fine, in a really good position (2 mins to U-Bahn, 40 to the centre by walk), and the check-in went perfectly: Christine, the lady in charge of cleaning and welcoming, was very kind to us, accepted us earlier than stated in the description and gave us precious advices about visiting the city and the christmas markets. On the other hand the apartment is really small, probably not siutable for four adults for more than a few days: there's only one little table, and the the sofa, when opened, takes up most of the space; the kitchen is not fully equipped (only three forks, two small fires, oil and salt were missing, no room to work at all) and it were pretty challenging cooking more than a pasta for four. But since we were there for only three nights and spent only a few hours inside, it worked good for us, considering the low price.