I stayed here at the Colonna Palace from June 30 - July 4, 2011 for the first leg of my Italy honeymoon. You can't beat this location. It's central to all the major attractions and we did not have to take a taxi not once. The Vatican and the Colosseum were the farthest away but even then we were able to walk to them in about 30 minutes which is not bad at all.
The hotel itself is not the most modern hotel and the rooms are a bit run down and small but again, you can't beat the location. The bathrooms were very clean and you can tell that they had been updated recently so we were happy with that.
Staff is friendly and the continental breakfast offered at the rooftop terrace is decent. I would recommend this hotel to a friend in a heartbeat.More