The apartment is small, but taken care of, clean, and has everything you might need: from the basics, to the washing machine or the iron, if you need one. It's a bit further from the main attractions (really close to the colosseum, though!), however, it's still a walking distance if you're up for it. If you get tired after a full day of sight seeing, you can take a metro, since the stop is really nearby. The only thing to keep in mind is that it is a bit noisy, as the apartment is on the first floor and people keep on getting in and out of the building.
When it comes to the host, Marc was very helpful and approachable, shared some tips where to go and what to see. Overall, it was a good experience!