Great apartment! Check-in and -out is very easy and uncomplicated as you don't need a key to enter. The rooms are very nice, the apartment spacious and the location very close to the center. Mario was cery helpful and replied always immediately.
The breakfast for 2.50 was ok but I wouldn't recommend it. All the places around are pretty cheap so it's very easy to find something better.
All in all, I can definitely recommend Mario's apartment and would also be happy to stay there again :)