We spent both Christmas and the New Year's holidays at Petra's flat. It was nice to be welcomed by a plate of Christmas treats and a bottle of Prosecco! We felt very at home and comfortable. The location is great! Tram stop right outside the front door and metro about 3 blocks away (although I heard it will be temporarily closed for construction for about a year). Amazing restaurants nearby: Beergeek (craft beers and bar food), Moment Bistro (vegan), Pind (Indian), and Pizza Bertoldi.
Only complaint would be that there was not a coffee maker or expresso pot. There was something for which you needed to buy disposable pods. Thankfully there were plenty of delicious cafés in the neighborhood