The best! Aldo was a fantastic host - warm, friendly and helpful - a very nice man, you couldn't hope for better. Shortly after booking he sent a handful of e-mails containing useful information regarding tourist attractions and exhibitions (including links and prices), along with travel arrangements from either airport to the apartment, and even his own personal guide for local restaurant recommendations, supermarkets and scooter hire complete with addresses and a map screenshot of each location.
On arrival Aldo was very welcoming and had a whole heap of guides and a map laid out. He showed us the ample facilities and had even gone to the effort of stocking a few supplies such as bread, eggs, juice, tea and a jar of biscuits (really tasty biscuits, I might add!) - a very nice touch. There was even a UK to EU plug adapter and USB charger for your phone, I mean Aldo has you covered! He was also readily available through whatsapp should he be needed and was only too happy to help in booking a taxi for us for a return to the airport.
The apartment itself was also fantastic. A very nice space I could happily live in with plenty of facilities. It was super clean throughout, the bed and sofa bed both very comfortable. A very safe and secure building in a nice area. Above all the location was amazing! The Colosseum a very short walk away and pretty much every other tourist attraction within walking distance, although the metro and tram can be caught from right next to the Colosseum if wanted.
All in all, I'm not sure you could choose much better than staying at Aldo's. The only reason I can think of for not giving a full recommendation is that I wouldn't want the place to be booked up when I come to book again!