Great location, a couple blocks from St. Peter's square and Vatican. Very close to Metro station, bus stops , dining, shopping. Room was clean and quiet.
Only negative thing was that it is not possible to check in before 2pm and the site listed to store luggage is at the hotel that manages the rooms and it is a cab ride away. These are rooms in an apartment building on a lovely street/neighborhood.
Once you are in room with door codes and key to front door it is great. Checkout is easy, just leave front door key in room and then you can leave anytime. Towel/cleaning every day if you wish.The 2pm time listed to check-in is correct with no wiggle room. You supposedly can arrange for early check-in, but do so days before you arrive. There is no one onsite except 2-8pm except cleaning from 12-2pm. My advice is to alert the property a few days before if you need early check-in. I only emailed the day before and it was not soon enough. We finally got in room an hour early but only because the cleaner was there and helped us call and translate. Next time I will alert them days before if I need early check-in so can have codes before I arrive. Would definitely recommend it, just believe the times they list for check-in. There is not any wiggle room for showing up early. Also, begin a dialogue through Whatsapp with Star Vatican before you arrive, it will save you frustration when you arrive. Except for check in frustration, it was wonderful experience.