I highly recommend staying at Elisabetta’s flat! She was prompt and helpful with communication, and the check in and check out process was simple and easy.
The flat itself is spacious, comfortable, and very clean, as well as being in an excellent location! Campo di Fiori is a very cool street market during the morning/early afternoon, and a center of nightlife in the evening. Despite this, we were never disturbed by excess noise. It is also walkable to all the important sights (or we recommend using the jump bikes or scooters all over the city, they’re fun and fast!)
We never cooked, but the kitchen has the necessary tools if we had wanted to - and the clothes washing machine and dishwashers were very nice.
The only thing to be aware of is that there is little to no true privacy between the sleeping areas; this was not an issue for our group, but good to know.
When we return to Rome, this I’ll be the top of our list of places to stay.