I stayed three nights at Elena's. Apartment is in good location, just a 5min to the subway Cinecitta station (with takes You in 20min to Termini), 15min to the subway Anagnina station (from there in 30min by bus to the Ciampino airport). The room was cosy and clean, the bed was very comfortable. Additionally there is a big, wonderful balcony where you can rest on fresh air. Elena gives her guests a lot of privacy. You are able to use kitchen as well as some products in the fridge. I definitely recommend this place for stay in Rome.