I am a long-term and active user of Expedia, and I book hotels through Expedia all the time.
Here is how I rate my experience at Vallas Apartment:
Pros:
1-Great location, right in the middle of the Fira Neighbourhood
2- good view when using the restaurant or the jacuzzi area that is for all guests
Cons:
1-THE ROOM- when I was doing my research to book my hotel in Santorini, based on my budget, I found few options. One of them was Vallas Apartment, which had a reasonable rate per night. However, the room that I wanted to book had only one picture on Expedia, but based on the experience that I have had with Expedia I went ahead and booked the room for two nights. When I showed up at the place and saw the room, the room was super dark, with no windows and right in the middle of the public area. No privacy and near the restaurant bathroom. I asked for a different room but they told me I don’t have that option unless upgrading the room.
On Expedia, you could see that I can book the better room for 20 Euro More, but the hotel mentioned that they can not do that and they can upgrade for 60 Euro extra. Which was absolutely ridiculous. I escalated the issue through Expedia but since I was already checked in, if Expedia upgrade my room for 20 euros more per night, the hotel would charge me a penalty of around 230 euro. So I ended up taking the bullet and upgrading the room for 60 euro extra through the hotel reception. A very poor experience, the first room was not in a condition