I stayed here for a week, and as long as you're not expecting 4 star rooms or amenities, it was a decent enough place and good value for money. I found a very cheap rate of £33 a night online, so wasn't I expecting much, but was happy with most aspects of my stay.
Good points: The receptionists spoke very good English, and were always polite, professional and helpful. The breakfasts were very good for a continental fare, with cereals, bread, rolls, cakes, yoghurts and juice/tea/coffee. There's a TV in the breakfast area which is always tuned to an Italian news channel. The location is great if you want to avoid Rome itself, just 10 minutes to the local train station, and then a 15 minute journey to the Termini station in Rome. Trains are fairly regular, but sometimes can be a bit crowded. My room was cleaned every day, and everything in it worked just fine. There was a small flat screen tv, although the only English channel I could find was BBC World News, but there are a couple of music channels as well which play English songs as well as Italian.
Bad points: The room I was in, up on the first floor (second floor to Americans), was a little small for me. I'm 6'4, and the bed was a little too short, although I was able to get to sleep ok, it wasn't too uncomfortable. The thing that would keep me up, or wake me up, was the sound of the airplanes - be warned this is very close to the airport. Also the roof slopes down in the bathroom, to the point where I couldn't stand up straight whilst making use of the facilities. I can't really complain, considering what I paid there was always going to be something wrong, and otherwise the room was fine. However I feel that I should warn others, especially tall folks, that this may not suit you. I did get a look at the bigger rooms on the ground (first) floor, and they seemed a little small too, although obviously without the sloping roof issue. Again, you get what you pay for, and besides this I have no real complaints about the Hotel Villa Giulia, except that there is only one computer with internet access available. It's what you'd expect from a small place, but it was annoying that I couldn't get online because it was in use by other people.
Overall I'd recommend this hotel for people who don't mind a little bit of travelling to get to the sights, can put up with the noise of the airport (it's not defeaning or anything, but it's noticeable), and are only looking at the room as a place to sleep and wash.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC