We were there for a national Turkish holiday, Bayram. Without having many options, we stayed at Bitez Kassandra for 1 weeks with the all-inclusive option. We booked the hotel suite with a double room which sleeps 4 people. The hotel location is perfectly situated within a few meters to a beautiful beach. Unfortunately, the internet and wi-fi was very slow throughout the hotel and almost impossible to use. Additionally, the beds are hard as rock and gave me tremendous back pain :(
The upside is the hotel staff and food in the all inclusive option, the location is great. However, I wouldn't choose this hotel if comfort is what you're looking for.