Dario was not there to greet us, but on arrival his mother was there to show us around. She did not speak English but was very polite and helpful, showed us all amenities in the apartment along with tube maps of where we were and what trains we needed to get. Dario in particular was extremely helpful beforehand answering any questions we had promptly. He was also on hand to answer any questions we had via text during our stay. The apartment is exactly how it is on the pictures. It is very clean and modern. The balcony is a great addition, with very large windows that bring the outside in. Dario even provided the basics such as washing up liquid, toiletries and clean towels.
The shopping centre underneath the apartment is also very helpful and reasonable in price.
The location is great, as it's only a 15 minute walk or less than a 5 minute bus ride to the nearest train station that has overground and metro trains. The train station is only 6 stops from the colosseum and also very close to the other main attractions. Overall our stay was brilliant and would recommend highly for any other couple thinking of visiting Rome.