The apartment is big and in a very convenient location. We didn't meet Matteo&Teresa, but their housekeeper welcomed us and explained everything. She also allowed us to visit the terrace on the roof with a view over Naples, which was wonderful!.
We really liked that every guest had 3 towels and the apartment had enough space for luggage of five people. The air conditioning worked well, but you'll have to empty the bucket every couple of days, which is a bit of a mess.
We always had warm water, even for five people showering in a row. Unfortunately, the toilet lid was broken on on side. It should be fixed soon.
Nevertheless, we really enjoyed our stay and would definitely recommend this apartment, especially for larger groups! Everything was very clean and well equipped!