Overlooks the Pantheon. Highly recommend.

It sits atop the via Veneto with the Aurelian Wall and the Villa Borghese right across the street and a short walk to the Trinita dei Monti atop the Spanish steps.

Rooftop breakfast buffet is 60 euros but spectacular and with spectacular views. I could eat enough to last until dinner.

My wife and I stayed there in 2016 on BR recommendation. It was perfect - great location.

My wife and I stayed there based on BR recommendations. Clean, modern, fantastic location.

The location, service, complimentary breakfast, etc. are the best. This may be the best recommendation the Back Room has to offer.

And just to be clear for the original poster, there's no rooftop restaurant, but it does have a large rooftop patio open to all guests with a fantastic view of the entire city in all directions. You can either bring your own snacks and booze to enjoy up there or have drinks and snacks brought up for you by the hotel.

is another great spot in Rome to watch the sunset - you get a view of every major dome in the city. It's about a block west heading out of the northwest corner of the piazza. The cocktails are good, but their mineral water list is exceptional (broken down by region, like a wine list.)

staying in or around the Campo di Fiori is the best base of operations for a visit to Rome. It is centrally located to just about every place you will want to walk - Vatican to the west, Forum and Coliseum east, Borghese Gardens north and Trastavere south.