Having lived in Rome many years ago, I already knew the location would be perfect. Literally around the corner from Piazza Navona and with all the major sites like the Vatican, Forum, Pantheon, Campo di Fiori, Spanish steps and Trevi all an easy (15 minute max) walk away.
The apartment itself is modern and clean despite being in an old palazzo. It has incredibly high ceilings and can comfortably sleep 6 (we were 4) with all the mod cons you could want including 3 bathrooms, dish washer and washing machine. It is also surprisingly quiet especially in the bedrooms.
Check in was easy (we were met at the apartment) and both hosts went above and beyond, even coming on Sunday to help when we had an issue and offering a place nearby to keep our cases after checkout.
To book 2 bedrooms in a hotel as good as this place and in such a location could easily cost you twice as much. I would definely recommend coming here if you are in Rome.