I am normally reluctant to book a room without any reviews, but since this was a last minute booking I figured I couldn't be too picky. This one was in my price range and very conveniently located. It turned out to exceed my expectations by far. Our host Daniele went out of his way to be accommodating and welcoming and added a bunch of extras and favors way beyond the usual. I can only give this BnB my utmost warmest recommendation.
A few specifics:
Location! A short stroll down the pleasant street and you are at the colosseum and all the surrounding sights. Go the other way and you are in the real, non-touristy Rome. The best seafood restaurant in town is a block away. A great little coffee place is practically downstairs. The street is so quiet at night that you can sleep with the window open and be woken up with birdsong!
The apartment is freshly renovated with the nicest bathroom I have yet to experience from an AirBnB. Everything was incredibly clean. The bed was comfortable, and although the mattress was on the hard side for my taste, I slept very well on it. The kitchenette and living area is nicely equipped. It even has an espresso machine.
I hope to stay there again next time I come to Rome.