Marie is a 5 stars wonderful host :) !
She was waiting for us in the street when we arrived and show us where to find everything we will need for our stay in the neighborhood (food, bus tickets, bank, good restaurants).
Then during our stay, she sent me nice ideas and advices...And that was a real "plus" for strangers like my husband and me.
The flat is very cosy and exactly as describe on Marie and Ivan's profile and on the pictures.
They also have a little washing machine. (Which is very useful : no need to take a big suitcase ;) !)
About the neighborhood, during the day you have a market on the street, with very nice local fresh vegetables and fruits and during the night...many nice bars and restaurants (and when you want to go sleeping, no problem with the noise of the street, because the flat is on the other side of the building).
I will highly recommend Marie & Ivan place for your stay in Rome : a 5 stars address :) !