Jimmy's place is well designed, very clean, light and bright, and fabulously located! It is three flights of walk-up, but not a problem except the first day with luggage. It overlooks Campo dei Fiori, which is centrally located in the heart of Rome between the Tiber and Roman Forum. You can walk to just about all the main attractions in Rome. The wonderful produce marketplace in the morning is replaced by a lively cafe and bar environment in the evening which can be very noisy, but certainly dynamic!
The owners and manager are very kind and helpful. I highly recommend the apartment for a couple or single person.