Just back from a really enjoyable stay in Reef and Sky. The host was wonderful, very friendly and accomodating. The apartment is so spacious with 3 large, clean bedrooms. I imagine it would be difficult to find a place so large in Rome. Great for those with young children as a travel cot and highchair are provided and in the kids bedroom there is a bed with a side rail. There is also a lift to the apartment but it is quite small (we couldn't fit our buggy in) but a normal sized stroller would be fine. The bathroom and ensuite were spotless as were the bed linen and towels. There's air-conditioning in most rooms and a decent sized balcony which is bathed in sunlight in the afternoon and evening.
The building is secure and quiet with cafes, restaurants, shops and supermarkets within walking distance. I would recommend the Eato bar right outside the gate of the apartment block for lovely coffee and pastries or the Sicilian bar across the road.The beach is only about a 10 minute walk and you are within driving/public transport distance from most attractions in Rome. We visited Zoomarine while there which is about 30 minutes drive and would recommend visiting with kids.
Fiumicino airport is only a 15 minute drive or about a 30 minute bus ride. Tip: if getting the bus from the airport buy tickets in a bar close to the bus stop, it's a lot cheaper than buying on the bus. We also found it no problem finding a car space outside the apartments while there.
Overall, I can't recommend Reef and Sky enough. Would definitely recommend to anyone looking for a place to stay in Rome and may even visit again in the future ourselves.