PROs: Shapan is a very welcoming host. He was available for our check-in, accommodated our needs, gave us great tips about our trip, and provided us with juice upon arrival. The location is about a 10 minute walk from Termini and the Colosseum, making an early train manageable. The beds were comfortable with sufficient bedding; decently ventilated room; clean and tidy environment; and enough hot water for three people.
CONs: As others have mentioned, the neighbourhood is a bit intimidating and located in a rougher part of the city. The bathroom is a squeeze especially if you're used to the North American sizes. The room is much darker than the one in the photos since the external windows are chained shut (almost no natural light). The kitchen is also off limits even though it say it's for personal use, which typically means not for commercial use or used by those other than the guests. But the host really meant it's for HIS personal use and not available to guests (it should just say that in the description). Despite the confusion, Shapan was still nice enough to accommodate us, and also provide fresh towels upon request when ours were not drying fast enough.
This is a good accommodation for its price. It is most suitable for those looking for a short stay and only need the bare minimum. Thank you for hosting us, Shapan.