Traveled to Newport from Massachusetts for a 3 day long weekend. Staying at the Admiral Farragut Inn was an absolute delight. The maitre'd was very friendly and accommodating, and the other employees were also very kind and helpful (they helped me with my meager duffle bag even though I insisted it wasn't necessary). As I was traveling solo, I had a comfortable room on the second floor: four poster queen sized bed, wood stove, window AC, tv, and a private bathroom with a tub.
Nice central location surrounded by other equally gorgeous colonial homes, with a 10 minute walk to the downtown area and about a 1.5 - 2 mile walk to First Beach, Cliff Walk, and the Newport Mansions. The breakfast service was also wonderful, and I appreciated that you could call and tell them what time you would be ready and what meal you wanted. The french toast was excellent!
Parking was a bit of a hassle, as you could either try and grab a space next to the Inn (tight quarters) or park across the street behind another bed and breakfast the owner manages. I was lucky enough to stay parked in one of these two lots my entire trip, with the self-imposed caveat that I walk everywhere (not a deal breaker for me by any means, but if you are accustomed to driving to your places of interest, be prepared to pay for parking).
Overall, I had a wonderful time! I would definitely go back again, perhaps in the Fall when it's a bit cooler!