I cannot think of a place better located than Palazetto de Lante. It is basically next to everything for a tourist, 5min walking to Trastevere and Campo de Fiori and less than 10min from the Pantheon. The room is nicely decorated, spacious and is equipped with powerful air conditioning (a life-saver when it’s 35 degrees outside). Will definitely come back and recommend this place to friends & family.