Hi! The closest train station is probably Termini. You can reach it by metro. The metro station Ottaviano is actually pretty close to the hotel - 10 minutes walking. Hope that helps :)

I had to call them to get them to confirm. Since it is international you may want to use a calling card. The owner speaks fair English if you talk slow. I don't believe they offer any transportation, they are small and only have a dozen or so rooms. But the staff is only very friendly and you are about 1/2 from the subway and less than a mile from the vatican. the neighborhood feels a bit sketchy but we had no problems during our stay in the fall. If you need access to public transport get a Roma pass. It includes three days of public transit and one or two entrance fees to things like the colosseum and Roman forum. If you go to Vatican(not included in Roma pass) i strongly recommend a guide to skip the line and get some good information. But be aware it's very crowded but totally worth the visit.

Sorry, just seen your post. Couldn't tell you anyway because transportation was part of my package. However I was told $40 by hotel staff as an FYI.

There is free wifi at the hotel, so you can check in on your phone or laptop. And the staff gave us the hotels email address,to email the boarding passes to. They printed it in the morning we left the hotel, we picked it up at reception :)

Street parning. Paid but Italian style