Lovely and large lunch buffet for only 12 euros; afternoon tea room with vegan cookies and biscuits; evening lounge/coffee bar with traditional style free appetizers done with a modern approach. Decorated with classic, rare rock album covers on a shelf around the middle of the restaurant. Fun! Impressive ruins of Hadrian's Temple are directly in front of Soletto 42 in Piazza Pieta. Near Trevi Fountain.
Cons: May not want to leave the stuffed chairs