My husband and I stayed at the Delia for 2 days upon returning to Rome to finish our European holiday. And, it was strange. First off, you can't quite tell where the B & B is from the street. Luckily, we had a GPS that repeatedly told us that "we had arrived". It isn't the best location - just 3-4 blocks away from Termini station. You must take the elevator up 3 - 4 floors and then knock on a wooden door which opens onto a "reception desk". From there, there are 3 doors. One of those led to our room. It was very strange. It felt very makeshift. There are like 5 huge keys you need to get through all of the doors so those were a bit inconvenient to carry all around central Rome. The breakfast is OK - just a traditional continental breakfast.
Our major problem was when we needed to check out...There was no one at reception (actually, during the two nights we were there reception was virutally non-existant). Anyhow, we needed to pay and hand in our keys. We called and called the 2 different numbers posted on the back of the door but no one answered. Finally, someone answered the phone (obviously fast asleep) and told me to write my credit card number down on a slip of paper and leave it at the desk....I was uncomfortable doing that...And, it was 7:30am when we were checking out; not the middle of the night!
All in all, not an excellent deal, not an excellent location, and none of the charm of a traditional B & B. I'd prefer to stay at the Albergo Romano near the Colosseum. A much nicer location, room and breakfast compared with the Delia.