We stayed at the Orsa Maggiore for four nights.
You get what you pay for - hotel is cheap (may '19) and 2 km from most of the sights. Very close to main trainstation and Porta Nolana (where trains go directly to Pompeii and Ercolano)
Staff:
If you expect a smiling or greeting clerk, find another place. The young girl behind the counter had an exceptional ability to make you feel like you bothered her.
This didn't affect our overall rating, since this isn't of importance for us. But if you value this highly, your experience will be affected.
Room:
Fine - considering what we paid.
Very noisy - lot of noise from within the hotel. Remember ear-plugs!