We stayed at the Hotel Due Torri for three nights in July 2005. We wanted a small hotel near the Piazza Navonna with air conditioning without paying too much. There were not too many to choose from that suited our budget but we were very happy with the Due Torri. We had a room on the 4th floor with a small balcony.
Other reviews mention that the rooms are small and they certainly are. We had to store our suitcases on top of the wardrobe to keep a bit of floor clear to move around the bed. But the bed was comfortable and the air conditioning worked well. The bathroom was clean but small although the shower wasn't brilliant - probably because we were at the top of the building where the water pressure was low.
But best of all was the location. The cobbled street was initially a bit difficult to find even with a taxi driver but it was quiet at night and nice in daytime as the residents went about their daily lives - with a Fiat 500 being restored in the garage next door.
At the end of the road is the restaurant Alfredo where we had two excellent meals. Not cheap, admittedly, but really good proper Italian food with highly professional - and amusing - waiters. Although it was certainly not cheap (we managed to spend nearly 100 Euros on a lovely meal with decent wine one evening) we felt that it was good value.
The reception staff were very helpful and organised a taxi back to the airport for us with only a few minutes wait.
We would recommend this hotel for anyone wanting to be right in the heart of Rome, in the pedestrianised bit of the city which is most fun in the evenings. Hotels in Rome seem to be much more expensive than anywhere else in Italy bar Venice and maybe Florence and we paid 180 euros per night for the room with breakfast.

Based substantially on these reviews, we chose Due Torri for our 4 nights in Rome, but despite pleasant interior and helpful staff, it was not our favorite hotel, largely because of the location. It's set back on such a small sidestreet that our Limoservicerome wagon could not get closer than the end of the street and we had to drag our luggage to the entrance. You'd think that would mean a quiet location, but motor scooters roar down the street as a get-through all day and night, and they are particularly loud in the morning when the scooter-repair shop next door opens for business. We were in rooms over the front door and it's possible rooms at the other end of the building would be quieter, but things do echo in those small, dark streets. The location from the point of view of proximity to things IS quite good, however, once you get your bearings and realize how easy it is to get just about anywhere. Another comment: you may not be able to rely on restaurant recommendations from the owner or staff -- they seem to have a "friendly" relationship" with places that were too expensive and not that good. Breakfast was fair to good, bathrooms reasonable for Rome, decor very very nice.

Perfect location, you can walk practically everywhere from here. Small but very clean, quiet and charming. Breakfast is fine. I stayed here twice and would highly recommended. As long as you are not looking for luxury and added comforts.

This is not a 4 or 5 star hotel but they do not pretend to be. The location helps create it's charm on a quiet little street that forces you to walk the short distance to Piazza Navonna and Pantheon areas. The desk was always friendly and sent us to good restaurants that were not a fortune. The breakfast was fine, not excellent. The rooms were small but nicely appointed. In general, very charming and comfortable. I would stay here again.