Just some additional comments on our stay:

Overall we really had a great time. It is a beautiful resort, and we as well as the kids loved the facilities. Even though the hotel was quite full the resort did not seem crowded (with exception of the parking lot).

The golf course is simply spectacular, I played in the Wednesdays competition when the rate includes buggy and rental clubs.

The kids went to Sandcastle twice and enjoyed their time there. The price was reasonable (EUR 20 a day per child).

The restaurants are very expensive by Greek standards. Since we had a car we ate elsewhere (our favorite was Zoe in Gialova), and just used the Souvlakeria and the ice cream shop.

Breakfast was a bit of a concern. The place gets very crowded during peak time, and the eggs made-to-order people seemed to work in slow motion. We simply gave up on it (20-30 min wait).

The only real hickup was probably the SPG Plat recognition. Upon arrival we were checked in by a pair of front desk ladies, both of which were from the 'SPG Plat receive 1 category room upgrade' party. Since they had given us two cat's as upgrade they did not really care about my request for a suite. One of the ladies even said 'if you wanted to be upgraded to a suite you should have sent us an email beforehand' - which is exactly what I did, and in the email the reservation staff had said they would do their best to upgrade us to 'the best suite available'. So all in all a bit of hit and miss, but the hotel was quite busy, so we did not push it to the limit.

On the other hand it was the one family vacation stay per year where the upgrade is worth more than on 20 business trips combined, so we were a bit disappointed. There was also no special amenity in the room (opposed to what was described in this thread what other people seem to have experienced).

I checked back a few days later, and for the final two nights we were given a standard suite (no pool) which was much appreciated. There was a medical conference going on in the hotel, and it was obvious that the suite had been blocked for one of the delegates (conference folder in the room upon arrival) - so a guess would be that they decided to upgrade conference delegates (VIPs, perhaps ?) over SPG Platinums but then reversed the decision upon my second request...?

A fantastic plus about the suite is that you can have breakfast in another restaurant (the Greek place by the pool) - this was heaven. Slightly smaller but more exclusive choice, and very quiet and relaxing.

Overall, we would return, and the staff was excellent and friendly. I would hope to receive a bit more elite recognition, though.