Maria’s place is everything you need. It is close to all main attractions and transportation is easily accessible to/from here.
Maria and her concierge team are amazing! She was very easy to reach and made sure we had everything we needed during our stay and even provided us with a list of restaurants and bars to visit. There was something in the apartment that needed attention while our stay and she made sure it was promptly tended to.
You should also visit her restaurant Agrodolce! The food is delicious and it’s just a few steps from Trevi Fountain.