Federico and Irina really are superhosts. If anyone is looking for a modern, clean and perfectly located apartment --> that's the one. Colosseum and other main attractions can be reached by foot. Further you are provided with a little guide containing attractions and nice restaurants. Roma Termini is also nearby if you are planning to travel by train.
Overall, thank you Federico & Irina for your great hospitality! I'll definitley stay at your apartment if I visit Rome again :).