I would highly recommend Leopoldini, the apartment itself is 2 minutes from a tram stop which takes about 10 minutes to get into the centre. There is also a supermarket close by.
The apartment is in a beautiful building, inside is a large space with huge windows and even a mural on the bedroom ceiling. It's well equipped and there is a small private balcony at the rear which is perfect.
Communication with Leopoldini is also straight forward. I would definitely stay here again.