Willy's place is very large and is so close to the Colosseum that you can actually see the top of it from inside. Willy and his wife were extremely accommodating and helpful. They're wonderful people.
From the flat, you can walk to the Colosseum in 2 mins and almost everything else in under 30 mins.
They are so well set up there that they even have discounts at local area restaurants. The restaurants are basically just outside the door and open all day as opposed to most Italian cities. The lunch/dinner restaurant they suggest and have discounts for is incredibly good. Fresh pasta, friendly, and accommodating. We ate there at least 6 times in our visit. Generally before walking around all day and after.
The flat is just as it appears. It's large and comfortable. We had a couple issues with a building alarm and noisy neighbours upstairs but none are Willy's fault. When we complained about the alarm going off a couple times for a total of about an hour, Willy rushed right over.
If this place is available snatch it up quickly! We will be back for sure if we can!