My fiancée and I did a long-term stay here and it was great! The apartment was clean, surprisingly modern, and well decorated.
The A/C was a dream (especially in August) and the bathroom was very nice (including a modern shower and bidet). The kitchen was very functional and allowed us to cook many meals. Outside, there is a laundry room with a washer, dryer, and iron (that we used often). For work, the Wifi was good enough to support 2 people being on video calls all day. And for entertainment, the TV had built in apps for Netflix and YouTube (as well as a bunch of local, Italian channels).
The neighborhood is outside of Rome's city center, so it's quiet and far from the throngs of tourists. As mentioned in other reviews, it can feel a bit gritty in some places, but we found that be a part of living in a real Roman neighborhood. Within walking distance, there is a grocery store, a number of cafes, some fun bars (Blind Pig), and some solid restaurants (Tira e Molla). We also ventured over to Pigento (the neighborhood next-door) on multiple nights for aperitivo and dinner.
As for visiting Roman sites, it was quite easy (either by bus or subway). We would commonly walk to Re di Roma to catch the A-Line into city centre (or to Roma Termini to take trains outside of Rome). There are even some historical sites within a short walk too (like San Giovanni in Laterano and the Scala Sancta).
Checking in was very straightforward (using self-check-in instructions) and Roberta was very kind and communicative (clearly deserving her superhost title). All in all, we definitely recommend you stay here!