In Delphi there's one hotel next to another. But not everyone looks as welcoming as the Parnassos Hotel. We stayed in a double room for two days and would definitely go there again.

positive aspects:
-the employees are very friendly and helpful.
-clean rooms (and they're cleaned every day)
-soap, shampoo, a little sewing set and cotton pads/swaps can be found in the room
-balcony
-the breakfast buffet is very nice, they also serve homemade cake (after breakfast the breakfast room turns into a cafeteria); they make
you the coffee you like: cappuccino, espresso etc.
-the state of the hotel is good, it looks nice

negative aspects:
-the shower is too small (but how could that be changed?!)
-just one electrical socket

We enjoyed the Parnassos Hotel very much. Arriving in Delphi in the evening without a reservation for a place to stay, we were able to negotiate a small discount and stayed in a room for four people on the top (3rd) floor. The hotel staff were each very helpful and the breakfast in the morning was super - the best we had on our trip in Greece. The hotel is right on the main street, but our room was on the back side and we had no problems with noise. The room was very comfortable and our kids would love to have stayed an additional night!

The hotel is right in the city center which was very convenient and very close the ancient site of Delphi.
The room was clean but small. Our room overlooked the street and it was quite noisy also the walls were to thin and we could hear the neighboors. The bathroom was even smaller and there was a problem with the plumbing and the heating. The water was extremely hot so you could burn yourself even if you turned only the cold. The room was very hot and there was no way to turn the heating off.
The breakfast was a disaster. The option were very few and the croissant were probably from last month. Also the cuttlery was kind of dirty.
The wi-fi worked only with a code but it was free. In the whole the rooms was to overpaid for what you could get.
I would recomend that if you look for luxury you should look for another hotel.

This hotel provided a clean, comfortable, and quiet room. The exterior is very pretty, as is the lobby. The rooms are what I have come to expect in 15 years of group travel. If you're looking for luxury, go elsewhere, if you want a good night's sleep so you can get back to seeing the sights tomorrow, it'll do just fine.