Stefano appartment is really great : wide, clean, and very confortable. We really enjoyed it for a week end and particularly the jacuzzi after a long day of walk in Roma. It's near Vatican's museeum and not far from Metro or bus line (23) to reach easily the historical center.
The restaurant (VostrOsteria) at the bottom of the building is also great and you can have good italian breakfast near also (La Fiorentina, via Andrea Doria)