It definitely has the best beaches I have seen and the best water colour: light blue! The crystal beaches, the wild capes, the fish food, the nightclubs...
I had the best time for years in Zakynthos, probably the most relaxing days compared to much travelling...
Yes, I enjoyed the fun of Laganas and the boat trip to the Shipwreck, but mostly I enjoyed the small villages we passed by when driving in the inland, the abandoned churches, the dangerous cape to see the Shipwreck beach, the sea caves, the sandy beaches where turtles go to lay their eggs, the old people with hat picking grapes to make wine.
It was middle September when we went to
Zakynthos and most busy tourists had gone home, so the island was on ourselves. Dishes were excellent everywhere and all ingredients were high quality. I haven't heard anyone having food problems in Greece. Ity is nice that people keep their traditional taverns and don't open international cuisine. If I want Italian food, I go to Italy. If I want Chinese food, I go to China. I come to Greek for the Greek stuff.