Marina's place is a very cute little space and the location is great – very close to restaurants, gelaterias, a couple shops, and the bus/tram. It's also within walking distance (or a short bus ride) to many of the main sites in Rome. We felt very safe in the area as well.
The communication could have been better. Marina said to message her when we arrived and she would let us in, so I let her know when we were on our way from the airport and when we arrived at the Airbnb. We waited for a bit with no response and luckily a neighbor who was exiting the building let us in. Marina responded to my message an hour after I sent it, so if that person had not happened walk out of the building while we were waiting, we might have been waiting at the door for an hour.
While I thought that the spiral staircase was cool, it might not be for everyone. If you're someone with mobility issues or if you're pregnant or a larger person it may be difficult for you to get up/down the stairs. The bed was sooooo comfortable and the blanket was extremely soft and fluffy. Probably the best sleep I've had in a long time. 😂 The bathroom could have been a bit cleaner. I got a strong sewer smell that I think was coming from the drain on the bathroom floor and the door seemed to have some mold on it from the moisture in there. But it had hot water and served all our needs. Bathrooms generally aren't glamorous, so it was alright as far as bathrooms go.
Overall, the stay was good. It met our needs and the location was the most important thing for us.