Me and 3 other friends stayed in Alberto's place to spend new years eve in Berlin. Because of the cold days we spend a little more time inside then we expected before, but his house was the perfect chill hang-out for us 4. We cooked nice diners and chilled for hours in the lovely kitchen. Supermarket and metro were super near by incase we did leave the house.
We didnt meet Alberto in person, but communication with him couldnt be better. He answers right away. We picked up the key at his neighbour and we left it for him the day we went home. He was fine with us checking out a bit later due to a late flight. I cant think of anything negative :) thanks Alberto!