As all previous reviews state the flat is exactly what is listed as and more. Spacious, clean, has everything you might need. Location is also great. Didn't have to use any public transport as everything you might want to see is within walking distance. There is a reasonable sized shop and few good places to eat out nearby.
Luigi is an amazing host. Always easy to contact and prompt to reply in case you'll have some questions or will need something extra for the apartment.
Honestly don't have any negative points to list! Me and my girlfriend had an amazing first time in Rome. Would definitely recommend!