We stayed for two days in To Palio. Both of us had a room on the main floor, which had a terrace in front and had a great view over Mount Olympus. The rooms were excellent, nicely furnished and also offered everything that I expect, including an airco. The hotel is located in Litochoros (also known as Litohoro, Litchoro, etc. Not very consistent naming). This is a place nearby Mount Olympus, and is close to Prionia, where you can park your car when you hike into the mountains. Speaking about parking, there is plenty of park space in the street in front of the hotel.
The hotel offers a very nice breakfast. When you go downstairs, you are greeted by nice classical music, and a wide array of choices that I found very appealing. The host will also provide some Greek yoghurt, and on one of our two days we were served some egg.
In the evening, it's lovely to sit at the terrace in front of your room and enjoy the view of Mount Olympus. You can order beverages and snacks as well, which were brought to our rooms. At night, there is almost no sound to be heard, except for the crickets.
We had a great stay, and I can recommend this hotel to everyone.