I have stayed a few times around Rome and nothing can come close to San Lorenzo if you want a respite from the tourist madness as well as the sleepy suburbs. Young and vibrant with tons of great food near this place! The proximity to the Termini station / metro is just icing on a delicious cake.
The flat itself was well-designed and had everything I needed. Rarely do you get thoughtful touches like milk in the fridge, it's clear the owners travel themselves. The neighbors were also very friendly and helped me navigate a language barrier with someone flashing a sus badge that wanted to know about my electricity.
There are more than several stairs so this may not be ideal for those that require elevators, but it sure made my fitbit happy.
I had such a great experience staying here that I will always return to San Lorenzo in the future (and hopefully this flat!).