Luca's apartment is great for a single traveler on a budget. Other than towels, toilet paper, and hand soap, it is just the bare essentials so bring your own toiletries. You can see the Duomo very clearly and beautifully from the terrace. It is also very close to everything so we walked everywhere.
For the apartment, it is made more for one guest only since we noticed one twin size bed. Since it was me and my partner, we slept on the pull out couch. It was a bit uncomfortable at times for two people and we could feel the coils.
TIP: Be careful of the metal bars on the side of the pull out couch. Don't scrape your knee like I did.