Staying in Newport for a wedding can be expensive. We were looking at $400-500/night at a hotel, so we went with Airbnb instead. We had never stayed in a stand alone room inside someone's house before so we were a bit nervous, but we were comforted from the very beginning with Karine's flexibility and hospitality. We were able to check in early to drop stuff off, giving us the day to explore town before coming back and getting ready. She has multiple rooms in the house, so we weren't the only guests, but she truly runs it like a bed and breakfast, felt welcomed the entire time. The house is about a mile from the bars & restaurants in downtown Newport, making it an easy Uber ride away.
If you're looking for a cost effective way to do Newport, I strongly suggest renting from Karine, beginning to end was great!