We had a great few days at Marco and Carla's place. Location is fantastic - easy to walk everywhere but also on a quiet, residential square. The flat is clean and tidy, looks just as in the photos, and has plenty of amenities for cooking and staying, including washing machine, oven, etc. Marco & Carla were prompt and clear in communications, offered tips on local places to eat, and were easy to contact.
It's worth saying that some neighbours are elderly and the sound-proofing is not great between apartments, so this would best suit respectful visitors who appreciate that they are staying in a quiet, residential block. Probably not suitable for loud parties!