Jacopo is a very responsive host, and the flat is perfectly located for exploring all of the best sights of Rome. It's nicely decorated, and the other staff working in the building are polite and courteous. If you're staying here for 1-2 nights on your own or with a friend then its perfect. Unfortunately our stay wasn't quite as idyllic as some of the earlier reviews - and so I would be hesitant to recommend this for a special occasion or romantic trip. As mentioned in other reviews, noise can be a significant issue both from the street (in the summer there are 2 clubs on the road) and from other tenants within the building. The lift runs all night which can be very noisy. There's a really great roof terrace, which we made full use of on the day after we arrived - on the other 2 days it was being used to conduct business meetings so was difficult to access and enjoy.
Jacopo was on holiday when we arrived - which might explain why we had a few issues with cleanliness and the quality of the amenities (used soap in shower, items from previous guests in wardrobe, faulty toilet flush, faulty shower head that fell off the wall constantly, and blocked drains which meant the shower flooded and smelled quite unpleasant most days, faulty kettle, etc). These are all quite easy fixes which I'm sure Jacopo will resolve for the next guests.