Overall it was a good experience. However, some of the islands we visited could be removed completely as there was nothing to see there (like Ios island, or even Sirios), and they could make a longer stop at Santorini.
The pool water was very very cold and the pool itself very small, while situated in the middle of a bar and a restaurant. The sun beds were on different floors, so there was no way to use the pool at all.
Dishes , food trays and coffee mugs at he buffet need proper cleaning, as they were often dirty.
The island is beautiful. The best of all Greek islands. But the time we had there was soooo short that we had to run and couldnt properly enjoy it.
We didnt have an organized excursion, but the island was nice.