I stayed at Hotel Giada for 3 nights at end of June.
The price was reasonable. I booked a single room for 65 or 70 euros and they gave me a double room!! I was definitely pleased with that. I also knew the location, as this was the 3rd time in Rome. It is situated close to the main Termini Station (convenient to roll luggage to/from station, direct from airport/other city). It is also far enough from the station that it is safe.
The room and bathroom were very clean. I had no problems. There was also proper circulation in the room...in the form of air conditioning (which was necessary at the end of June).
The only thing I would be weary of is the breakfast. It was simple. Edible but not the best. Coffee (any type), cereal, fruity/sugary orange drink (not juice) and a (horrible) type of baked good.
But for the price and during the high summer season, I couldn't have asked for more!

Unfortunately the photographs of the rooms are nothing like the reality. Our tripple room on the 5th floor was large but very gloomy - there was bare grey plaster board ceiling (unpainted) and the decor and furniture generally looked tired and in need of modernisation. The room, however, was clean and the bedding was white, crisp and clean.

Don't expect too much for breakfast - there isn't much choice, bread rolls are hard and stale. Crossoint and coffee are the best bet.

My overall feeling is it is not good value for money and I'm sure there are better hotels in Rome for a similar price. I would say it is a 1-2 star hotel, definiately not a 3.

On the plus side it is in a good position for sightseeing.

This is the worst hotel I've ever stayed at. The elevator broke (while we were in it), the rooms are smelly, and you run out of hot water through a normal shower. The bathroom had a musty smell, that I cannot attribute to anything in particular. It is not a smell you would want to find out on your own. To cap it all off, I think we got scammed for 100 euro (fake note). That point is debateable, but this hotel is not 3 stars...and I'm surprised it is in business still.

Upon check-in, I called the Hilton to book another room. That tells you something.

Stay away...far, far, away.

this hotel was the worst place i have ever stayed the room was small dark and smelled funny. The bathroom was appalling i felt dirtier after a shower as the water stank and made me feel sick just before the hot water ran out, and it was full of insects. Mouldy walls and cracked radiators added to the over all ambience. It was like an eppisode of Fawlty Towers with out the homour. I would advise anyone staying in rome to avoid this hotel.