The apartment was really nicely decorated and quite spacious for one person. The bathroom is sizable and clean. The kitchen is a little tight but totally functional and well-equipped. The wifi is pretty speedy too! I also liked that you can go up on the roof.
It was a little cooler than I expected, maybe since the apartment doesn't really get any direct sunlight. However, I visited in January so this might actually be a beneficial effect in the warmer months.
There are plenty of restaurants, shops and ATMs and a metro stop conveniently within walking distance. The hosts gave a me a really nice guide with a map of the area and some useful vocab.