I would say Federico offers a well located stay as his apartment is in a very nice part of Trastevere. I walked the entire historic center and I saw all the important monument and places in Rome by walking.
Maybe he could take more advantage of his apartment location and to improve his place. I guess one of the most important features is the WI-FI, which it didn’t work never during my stay. The bedroom is average, he could put some curtains to the window. Maybe adding one more pillow to the bed and a softer towel would be excellent. Talking about the bathroom, the shower also could be improved.
If he makes those changes, his apartment would be a great option/choice to stay in Rome.