The apartment was located in the prime neighborhood of Palermo (which is where you want to be). It's on the seventh floor of this small apartment building, overlooking a beautiful park. The elevator looks historic but worked well for my stay there. Each floor of the building is its own unit, so you have a lot of privacy and you're almost never waiting for the elevator. The classic touches extend to the apartment (the faucets in the bathroom have these knobs that look like they're from the 50s). The apartment is clean and very well appointed, with everything from a fully stocked kitchen to reliable and fast internet, to a powerful A/C in every room. The internet was very important to me since I was working remotely from here. There is a wide (but shallow) balcony overlooking the park with a small table and two chairs, perfect to enjoy your morning coffee (I used the electric tea kettle every morning to make green tea). I was here for two weeks, but easily could've stayed a month with no issue.
The company managing this property is very professional and prompt. They allowed me to store my luggage at their office before my check in time, and after I checked out while I waited for my flight. Oscar (the person who actually checked me in and out) was even nice enough to help me flag down a taxi after my check out since my cellphone's data had run out (thanks Oscar!).
Overall a great experience, and I'd definitely stay here again (hopefully for a bit longer next time).