The apartment is in a really nice location, very easy to get to to and from the airport by bus (you could save ~5 EUR each if you walk ~10-15 minutes from the airport to public bus station 81/91 which are going every 15 minutes rather than taking the 6 EUR aerobus).
The bus station is right near the apartment building but you won't need it other than getting to/from the airport as everything else is in walkable distance (a large grocery store is 5 minutes away, a bunch of places to eat right near the apartment, walking to the historical city center is only 10-15 minutes, etc).
Walking to the train station is only 5 minutes (super easy to get to Rimini, San Marino, Florence, etc...).
The apartment itself was a very comfortable, clean, renovated and modern studio with brand new appliances and bathroom.