We really enjoyed our stay at the apartment.
The only thing worth noting: bring earplugs if you're a sensitive sleeper. The main street below is busy with traffic throughout the night. We got used to it after one night though.
The location is great, right in the middle of the city and close to all of the tourist attractions, without it being too touristy.
The apartment itself was clean, nicely decorated and made, and had everything we needed. The cleaning staff was very kind and helpful, and provided fresh towels upon request.
Recommended!