Location - Right next to the Centro Medico metro line, which puts you one stop away from Roma (or a 10 minute walk). There's good street food and cafes close by as well. Shout out to Madam Cafe for the great crepes.
Space - It's a small studio with surprisingly a ton of storage. A little mini fridge, stove top, and toaster oven if you want to cook, and a smart TV. The bed folds up for a little couch, but I left it down most of the time. There's also a desk and chair which I used for work.
One thing I'd note - you're on the ground floor at the front of the building (so the window faces the street/sidewalk). I kept the window closed/blinds down most of the time for privacy.
Host - Felipe was really helpful and communicative. Great experience.