What a great apartment. In a really good location, close to amenities, the tube, and some landmarks. It has everything you would need, and everything worked as it should, and was lovely and clean. We visited in a heatwave and the air con worked great. Good powerful shower. Plenty of storage. Big TV, reliable WIFI. The roof terrace is great, and whilst on the face of it you might think it is overlooked, it is surprisingly private. Also - a very comfortable mattress that not all Air BNB's have!
Communication was great before we arrived, so we had a mobile/whatsapp contact (in our case Emiliano). He met us (and directed us as we got lost) and showed us everything in the apartment. Gave some recommendations for meals out and where to find the supermarkets. (If you visit, do use the restaurant sciue sciue - just round the corner, and a superb recommendation from Emiliano). He was also on hand when I got stuck with one of the applicances.
One thing I noticed on previous reviews was a complaint about the noise. To be fair, there was the occasional late night noise of people in the street, people letting themselves into other apartments in the block, or someone rolling a wheeled suitcase across the cobbles for a early morning flight, but if you want 100% peace and quiet then you shouldn't rent an apartment in the centre of Rome! So this was not a negative for us.
All in all, highly recommended, and if I was coming back to Rome I would have no hesitation in booking it again.