First of all is the location, right in the Piazza Navona where it gets packed every night, however after 11:00 pm the police do not allow any more events and it gets quite so you do not hear any sounds.
Then the technology, they have a panel to control all lights, temperature, TV and other things. The service is impeccable, the price is reasonable and you have plenty of restaurants right below when you get out of the building. The only minor thing is that the Taxis cannot get into the Piazza so you have to carry your bags there, but it is not more than 100 feet.
All in all, a fantastic place to stay, centrally located and affordable with superb service. Highly recommend and I will definitely stay there again.