The hotel is on the main street in Delphi, with parking on the street outside.The Delphi Archaeological site and Museum is about 10-15 minutes walk downhill (but, unfortunately, uphill on the way back ;-) ).
We were in Room 15 on the first floor (no lift). The room was fine, but watch your shins on the edge of the bed. The best part was the balcony with fabulous views out towards the bay. The bathroom had a bath with shower over, but the bath was rather short and narrow.
Breakfast was in the taverna attached to the hotel. Basically, you got what you were given, but it was more than sufficient.
We ate in the taverna both nights we stayed. Prices very reasonable. Our first night was excellent (rooster with spaghetti, and codfish), but the second night was disappointing (moussaka, and spaghetti with mince).
Staff at the hotel was helpful and friendly, although we only saw one - a tall chap with Herculean strength as he carried our suitcases !!
I think it would be very difficult to find better value for money staying in Delphi.