We had a "National Lamppon" experience with the Hotel Diplomatic. After a long drive from Sorrento, and circling around the hotel/Rome trying to find a place to park to check in, we finally got into the hotel only to find out that they gave our room away because we got there after 12 noon and it was their "high season". We were furious with this and tried to reason with the manager, but he just kept saying "it's the high season" and to "look at our contract/voucher" (which we did 10000 times and it said nothing about giving the room away).. However, he was helpful and put us up in their sister hotel, Hotel Caprice, which was on the other side of the river near the Spanish Steps.

My girlfriend and I stayed at the Hotel Diplocatic for just over a week in early August of 2007 and had a great time. The room was decent size (comparable to any holiday inn room), had air conditioning, buffet breakfast was included, was quiet, and met all of our needs. Great location just a few minutes walk to Castel Sant Angelo, other than that there is a bus stop 3 feet from the door, so it's simple to get anywhere in town. VERY good location.

Just returned from a trip to Rome with my sisters.We had adjacent rooms that were very clean and comfortable. Our rooms faced a very quiet street and we were not disturbed by any traffic noise. The breakfast was a cold buffet but there was ample choice and the staff were very friendly. This hotel is very convenient to all the great sights in Rome. We walked everywhere and felt very safe even at night. I will return to Rome again and I will definitely stay at the Diplomatic hotel again. We did not avail of the hotel taxi to the airport as this was 60 euro but we walked to taxi rank at end of road and taxi was only 40 euro .