Carla was very nice. However, she was not waiting for us at the unit and the data we bought for our phones did not work, so we had no way of contacting her in order to get into the unit. This caused us stress.
There is no air flow in the unit - no A/C and no fans and no ventilation for the bathroom - which was only accessible by walking across a public hallway. At times the unit was very stuffy in the hot summer.
We were able to walk to the Colosseum from the room, which was convenient. However, be aware that bus lines do not seem to run frequently from the location, and we were often waiting a while for buses that did not show up.