Great place for a couple or three close friends who don't plan to spend much time there. The neighbourhood is very conveniently located and there are some cool spots within walking distance or a short metro trip. We did not feel at all unsafe in the neighbourhood and were only bothered when waiting for a friend at the Gare du Nord.
The apartment provides the bare minimum in terms of towels, blankets, etc. There was no hand soap in the bathroom or toilette paper which we found strange.
The kitchen equipment was enough for us to make some basic meals so we were happy.
Overall this is a decent, basic apartment with a convenient location.