Yusuf's place was nice and clean, but take note that there is no wifi in the flat, which can be a logistical hassle for foreign travelers.
The location is very close to a tram station that will bring you straight into the main city, near the opera house. From there you can walk to the museum square and many of the main sights.
Yusuf was kind, understanding, and even let us keep our bags in the apartment after we checked out.