Overall the stay it's ok, for young traveler it's ok, not for family with old people. The location on ads is House 12, but actual address is House 120 (use your imagination). By foot to Vatican at least 25mins downhill, back is uphill. Taking bus 913 is always crowded, we don't even consider taking bus. Supermarket is 5mins away. During our stay, the main issue is the heater was never working (freezing during night). Shower heater is unstable, it will go extremely cold suddenly or extremely hot suddenly. After all our issue still the misleading location.
Lastly is the late check in after 8pm, there is a fees of Euro50. It's fine with me but at least noted in the ads and be more transparent. I only receive this message a day before my check in.