The space was very large (spread over two floors) especially considering the location in Rome. It was central and allowed us to easily access popular sites and transit.
SpaceIdeas had regular and clear communication and were very easy to deal with. Very responsive.
We encountered 3 issues. The iron had material burnt onto it and was unusable (mentioned in another review in May). Our host came over right away and brought a new one.
There was a sewer smell on the main floor for the duration of our stay. We were told it was due to water in the trap evaporating and gases entering the suite. We followed the host's suggestion to run the taps, but it did not yield much of an improvement. We opened the windows for an hour at one point which did help.
The downstairs air conditioner was not operational during our 5 night stay. We notified the host right away and they did attempt to service it a few days later. The service did not fix the issue, so we went without AC on the main floor for the duration of our stay, making that part of the unit most unusable due to the heat. Our host was apologetic. We asked for and received a partial refund due to the inconvenience.
Overall, we experienced good customer service through a bad situation. I believe you can just be unlucky even at nice places, and most of the other reviews of this place were positive, so I'd be inclined to give them the benefit of the doubt during your stay in Rome.