We stayed 2 nights at the hotel whilst sightseeing Rome.
Though located about 30 minutes' drive from the city centre (rail terminus -The Termini), it is well connected to it by bus, metro and taxi. The Catacombs, a minor tourist attraction is within walking distance of the hotel.
The staff were friendly and helpful. The hotel has internet facility for a small price. Our room and bath were spacious and clean.
Breakfast was good standard fare: choice of juices, cereals, bread, croissants, cake, ham, salami, tea and coffee.
One can buy a 5-Euro telephone card from a shop nearby, which gives about 200 minutes of talk time with USA, using the hotel phone at no other charge.
I could connect my camera battery charger and cell phone charger (both bought in India and suitable for use in India) to the room sockets without any problem.
There's a nice cafe and an Italian restaurant next door which serve Italian meals at reasonable price ( ~ 10-12 Euro for main dish).

I stayed at the Caravel as part of a Cosmos tour last month. I can sleep just about anywhere, even inside a car, but this hotel gave me the CREEPS!!!! The lobby looks descent but I felt as if I was transformed back to an apartment I lived in in the Czech Republic 15 years ago! Musty, old smell,constant noise from traffic, thin, flimsy bedsheets & towels.I would not take my slipper off in the bathtub when I bathed! Room is larger compared to other European rooms & it did have a private bath, but for the price I have seen on other sites for this hotel, I would say just cough up the extra 20 Euros & stay closer to the city center. The only advantage this hotel had is that the Appian Way is about a kilometer from this hotel, other than that, STAY SOMEWHERE ELSE!!!!

The easiest way to get her is to take the train from Leonardo airport to Ostensia station 5.5 eurofrom there it is a 10 minute walk or you can catch the 715 bus from out side the station. This bus also takes you into central Rome (Teatro Marcello) from the other side of the road from the hotel.
The hotel itself is what you would expect from a good three star. It is very clen with the sheets changed every day. The staff are attentive and helpfull and the well stocked buffet breakfast is more than adequate. The road outside is very noisy and busy but we could not hear it from our room but if it was the middle of summer and you had your window open it would be a different matter. There are several eateries nearby mostly of a good standard and half the price of what you will pay in central Rome. The hotel ia about 30 to 40 minutes walk from the Colloseum and overall I found it to be good value for money. My only criticism would be that you have no chance of lying in in the morning as lack of carpets means that once everybody starts moving around you are more than aware. Why do the people in the room above slways start moving the furniture about at 7.00am?

We stayed at the Caravel on 14 - 16 March. Hotel was clean and tidy. Not in the city centre, but only 10 minute walk from Metro and then a 10 minute metro journey. Bus stop just a few minutes away. Plumbing was noisy as were some of the other guests (on the Saturday night). Hotel is on a busy street with lots of traffic - although we were not facing the road and it wasn't too bad. Continental breakfast was very good. Alcohol prices not bad for hotel, but barman did try to over-charge us and was seen doing the same to another customer - so check bills! All in all, this hotel just about did the trick for our purpose (rugby Italy v Wales) for the price paid.