Roger's place is great. It is in a quaint area of Rome, very cute and well decorated. The bed was comfortable and the water pressure in the shower amazing! It was quiet and yet close to everything we wanted to see. It was well appointed; we cooked one evening and had everything we needed there (oil, vinegar, butter etc).

There was one small issue. Our flights from Sicily were cancelled by the airline a week out, and moved to 2 days later. Other airbnb hosts were incredibly accommodating, offering refunds or alternative dates so that we didn't lose too much money. I emailed Roger 8 days prior to the booking to see if we could arrange something else, and he did not respond in the same way. He offered a partial refund, which was actually only 1/3 of the total booking. I understand that this is a business, and there are cancellation policies in place. However we did not try to cancel for change of mind or something frivolous, and I gave as much notice as I could. I was surprised at the contrast between this host and others.
In the end, we purchased additional flights to Rome just to keep this airbnb booking because we couldn't afford to pay for accommodation in 2 places for 2 nights at the same time.

So all in all I would say it's a great place, but be very careful if there's any chance your travel plans can change.