Sorry can't help you out with these appartments but are going to Kamari ourselves next year. We've booked the Estia Studios which look really nice. Had some positive comments on this site from people who have stayed in the resort of Kamari.

Hi Aimeelouise , I haven't stayed at the Atalos but have stayed at Kafouros Studios that is just around the corner. The Atalos look nice, but the pool does look quite small. They are only a few min walk from the beach and the main restaurants and shops. I am guessing your going with Kosmar and if you have the same rep as us Mark, he is really helpful and knows everything about the island.
Not sure if you have been to Santorini before but it was our first time this year and it was fab! if you have any other questions, please ask.

Lea28

We stayed in the Atalos apartments last year.They are clean and well looked after and in a good position.Not too far from everything but still nice and peaceful.The owner is called Yianni and is fantastic.He will go out of his way to help in any way he can.My daughter and grandchildren were staying at the Kafouros(also very good) but spent most days at the Atalos with us.Yianni told them to use the empty apartment at the side of the pool to let the kids have a sleep through the day instead of having to go back to there place.You should have a good holiday there.