We definitely agree to the other ratings. Rade is probably the best possible host you can have in Rome. He gave us a lot of information about the city, the italian lifestyle and was very helpful. He even organized us a guided parking for our car for a special price.
We ate together twice and went to Piazza Farnese for a beer. If we visit Rome again, we will definitely choose Rade's Flat again.
P.S. Ask Rade for "Orange Juice" for breakfast, you will be very suprised what you'll get ;)