I was coming here to say this! Modern all the way. Prezza is excellent - for a lower cost option, Antico Forno is also wonderful. Walk down Newbury St, walk through the South End - brunch at Myers & Chang is fantastic. Tatte and Flour are good bakeries. I also second the rec for Hotel Commonwealth - Eastern Standard reopened and is wonderful. The Seaport is really fun and has great restaurants. All of Boston is super walkable so if you don’t need one, don’t rent a car - it’ll be expensive and Boston driving is not for the faint of heart.
Is your daughter interested in Wellesley? I think it has the prettiest campus in Boston so I’d check it out for sure.