Concierge.com's insider take:

The only hotel with an entrance on Via Condotti, Rome's fashion strip, the Inn at the Spanish Steps is a luxury boutique hotel with a fabulous roof garden, where breakfast is served when weather permits (which in Rome is most of the year) and where a free aperitivo spread is laid out between 6 and 9 p.m. The antique style of the rooms—with their oil paintings, polished parquet floors, and (in some rooms) exposed wooden beams and stone fireplaces—is a throwback to the days of literary travelers like Hans Christian Andersen, who briefly lived in this palazzo. In 2004 the Inn opened a four-room ultraluxe annex, the View at the Spanish Steps, on the top floor of an adjacent building; it provides just what the name suggests: the ultimate angle on one of the Eternal City's most famous landmarks. The style here is more classic-Moderne, with ebony floorboards and safari-striped armchairs. A third member of the family, the Inn at the Roman Forum, opened in June 2006.