Marco is an amazing host. I strongly recommend a stay at his place. The flat is super central in Campo dei Fiori; sweet, well furnished and clean. The room is big and you also have your own bathroom with toilet. I came with a friend just for the weekend and he straight offered the aperitivo with great Buffalo Mozzarella and wine from his market :) to welcome us. He also gave us a lots of advice on places where to go etc and invited us on Saturday night to one of his friend birthday.Really a nice person! Would have liked to stay a bit longer...