I booked Sveva's apartment for my mother's 80th birthday celebration (and first visit to Rome), which meant there were nine of us: six adults, three children. The apartment easily coped with us all and there was no sense of it not being big enough whatsoever. That should tell you that this is a big apartment.
I had asked Sveva to buy a bottle of champagne to be waiting for us in the fridge which she did, so that's a nice touch and illustrates her commitment to her guests.
As other reviews all say, it is a fabulous space, with everything you would need for a city stay. The pictures definitely do paint an accurate picture.
We were checked in by Sveva's friend, Laura, who made us feel extremely welcome and gave us good tips on where to go once we had done the sights.
Close by there is Caffè Piave: good food and very friendly young Argentinian waiter: just what was needed after a long day travelling. There's the Conad supermarket only five minutes away, and en route to the apartment if you're coming back via Termini which was very handy for wine, beer and chocolate, although there is a smaller shop actually on Casteldifardo.
Would love to come back, if only to use the amazing roof terrace in the summer. February's clear blue skies made it a delightful spot for morning coffee, but I'd rather it had been a cocktail on a summer's evening.