The apartment is small but nice. You will share a bathroom with the other guest. G is very prompt to respond if you have a question or a need(via airbnb) The bed is comfortable. The bathroom is very tiny. The area might feel unsafe at the beggining but is not, in fact it has a lot of small restaurants to eat great food. The Metro Station is around 5 min " fast walk " from the apartment. The Metro experience is very interesting, a lot of nice looking prople nicely dressed rushing so dont be afraid. Try to plan the Metro out of rush hours. The tickets to the Metro can be purchased at the train station. Each ticket can be used up to 90 minutes after you used them the first time.. the directions are very clear inside each station and the people inside the station are very kind to respond any question( police..etc). Try to do the archeologist (via airbnb experience) for a day it was our best experience in Rome. :)