The ONLY good thing about this hotel was that it had an elevator. Other than that, the carpet throughout the hotel is dark, old and dirty. Walking into the actual hotel (which is on the 3rd floor only) was eery because it was dark, rundown and had a weird old stench to it.
With regards to the room - I was scared to walk on the carpet with bare feet. It wasn't one large strip of carpet, but a whole bunch of squares stuck together. The wall paper was coming off the wall and there was a cobweb on the ceiling. The Air Conditioning was like a massive glorified fan which worked worse than a fan. It kept our room at about 30 degrees celsius the entire night - we could barely sleep.
They also only work with one taxi service so we went across the street to a nicer hotel and asked them to order us a taxi to the airport for the next morning - they were more than happy to oblige (it was cheaper than the service that Ara Pacis offered).
Overall, I would never stay here again. I was actually scared to sleep in that room.