We enjoyed our stay at the appartment because it was a great location to explore the city. Everything is within walking distance or just very few stops with the metro.
The place itself is ok, quite spacious. With the exception of the bathroom the interior is a bit worn and past its best days. One of the bedrooms is actually in the cellar with no actual door to the main living and cooking area. The other very small single-bedroom in the back houses also the kettle for the heating systems which randomly goes on a couple of times during the night.
We were ok sleeping and eating there but it is not a nice place to hang out. If you just need a good starting point for the city and don’t care to spend time indoors, this is a great place.