Roberta is a lovely lady and wonderful host. Her flat is great, very nice area, good transport to center. Best though is guest use of smart tablet and her miniguide which you can easily carry in backpack or purse. You can make calls on the tablet, plus Google maps etc. This was great for us, I didn't have to get a sim card for just a few days in Rome. A delightful host and stay.
Jim & Trudy Alexander