If you leave Rome's central train station at the south exit, you can already see the hotel sign at the far end of Via Carlo Cattaneo (call it 250 m). Via Carlo Alberto where the hotel is located is a relatively quiet street- this is good as sound insulation towards the street is virtually nonexistent. Try to get a room to the back.
My room (112) was a very small single that was only 160 cms wide. As the bed and the furniture were small too, it did not feel too claustrophobic though. There was a wall closet big & deep enough to hold also large suitcases - there were about 15 clotheshangers in that closet so you can stow away your stuff and keep what little room there is neat and tidy. A safe is also in the closet.

There was a little fridge (worked) and a tiny TV (did not work but I didn't care to mention it so let's assume staff would have changed it if I had bothered to complain).
The room had aircon which also had a heating function - this was a really good thing with outside temperatures below 10°C but if it gets any colder you'll have to keep it running round the clock to get warm.

The bathroom was also small (80 cm wide) but everything worked well. The shower had really warm water and I (195 cm) could stand upright. Unfortunately, standing upright is also what I had to do with the toilet as there wasn't enough legroom for me to sit...

Breakfast was excellent by Italian standards and still OK by my standards: There were croissants & regular bread rolls, jam (strawberry & peach), honey, processed cheese, cornflakes. Drinks were water (cold & hot for tea), orange juice, coffee, milk (hot & cold).
Staff was nice & fluent in english; I could check in early, no problems at all.
Something good that unfortunately isn't the norm elsewhere is that they don't just hand the key to anyone who throws a room number at them but ask your name before handing out the room key.

All in all, I was OK with the room size and very happy with the central location (250m to Rome Termini station, 100m to subway B, 100m to Santa Maria Maggiore, roughly 1 km to the Colosseum). Also happy that it was possible to block out all light from outside. Not happy at all with sound insulation that impeded sleeping. I had to use earplugs.

The location of this hotel was fantastic and very safe. So if you are a single, female traveler like i am, you do care about that sort of thing. The breakfast was fine; not spectacular but fine. The shower was the ONLY point of issue as the opening was so tiny, you have to walk in sideways. The staff was pleasant and helpful. I would totally recommend it if you plan on taking lots of trains or want to take the hop on-hop off bus for a painless way to most of the attractions. The price was very reasonable as well.

Hotel Giubileo is a outstanding hotel. Very clean, great location, price ok. I recommend this to Hotel with it's short walk to trains, and public transportation. The staff was so helpful. We will stay again at Hotel Giubileo!

We stayed in this hotel in November last year as a 4 day trip. We approached the hotel and it had scaffolding on the front of the hotel which was unfortunate but hay. Our room was nice and had all the facilities as stated no problem at all.
The reception was great help and told us how to get to the famous landmarks.
For what i paid for this was great plus i had breakfast in the morning free :) (breakfast came with break) This is near all the great landmarks and also near tour buses. A supermarket is located nearby so you can get grub. And loads of restaurants nearby.
good for a city break like me