We had a very enjoyable stay! We were three adults and one 3yo child, and the apartment is spatious, has many beds, and it is very well equipped. It was also very clean upon arrival. The communication with the owner was always very prompt, and everything went smoothly.
As it is located in the old city center, it can get a little noisy, and there is also not very much natural light passing through the very narrow streets. The advantage however is that we could easily walk almost everywhere, as we were really close to many points of interests, the port, and good restaurants and cafes.
Also has a very close subway connection.