I stayed alone in January for 10 days for work-vacation. The apartment is a medium studio and the size was fine for me. The wifi is very fast and I brought a cable that was easy for the wall connection. The heater worked well to warm the apartment quickly. The location is great - near parks, super market, and smaller shops. The street itself is very quiet as it is a side street.
I did not cook but the kitchen has all the pots, pans one would need.
The apartment company was very responsive. On the first day I asked for a few things (ie., another blanket) and they quickly took care of it.
The apartment is on the 4th floor with only stairs, so make sure you can handle that. The apartment itself does not have a view, but that is city living.
I could have selected a bigger apartment outside of the city center, but I wanted to be in the center and I am glad I did. Easy to walk to museums, restaurants, metro stops, etc.