The location was good, quite calm, but still very easy to reach by tram or metro. In 10 min you're in the center. Even after midnight it has very good conections with the center.
The apartment was very nice, very new, bathroom and kitchen were in very good conditions. It has a fridge, kitchen stuff, fast internet. The bed is big and comforable, the pillows, depends on the taste, for me were a bit soft. Also the check in and check out are very easy and comfortable.
The only thing I didn't like was that the thick curtain that covers the window didn't really reach to the end of it, so the light still can pass through. This was annoying as the sunrise in June is very early (around 5 am). I recommend to bring a sleeping mask if you don't want to be woke up by the light.
Still, I totally recommend the place, over all it was a very good experience.