The apartment is a few blocks from the Opera, in a location close to many restaurant and not far from tourist attractions. The person who greeted us was really nice and helpful.
I stayed with my mother, it was a bit tight for the both of us with luggage, but if you're staying by yourself or just going there to sleep, it'll suit you fine.
The bathroom is a bit small, so a taller person might find difficult to work themselves inside - I'm 5'41" just for comparison.
On Monday morning the street was a little crowded and the traffic intense, with lots of people honking. On the remaining days we didn't see any of that.
So, I highly reccomend the place if any of those things are an issue - it's very well equipped and in a great location.