Spent two nights at Pilar's place which is as central as you can get with the added convenience of parking (She even insisted on parking the car for me!). Apartment is small, super clean, and provides everything you might need. It's on the third floor but the stairs won't phase you after a day of walking through hilly Città Alta. I'd say it's ideal for solo travelers, couples, or couples with kids. Rent a small car! Great stay, I highly recommend.
Grazie mille per la tua disponibilità, il tuo consiglio, e soprattutto la pazienza con il mio italiano!