We just got back yesterday from a 2 week stay at Sarakina Apartments, Nicos, the owner and his family were lovely and made us feel very welcome. I stayed with my partner Paul, daughter Jess and her friend Yasmin, both girls are 11 and they loved the pool and bar next door at Agnanti, where they had great bar food and snacks at very reasonable prices.
The Sarakina Taverna, also owned by Nicos was great too, with excellent food and Greek dancing every night.
The rooms were clean and attended every day by a lovely maid, we always had clean towels and sheets.
The girls loved it and so did we, the views are good and it's just far enough away from the main hustle and bustle to be peaceful and unspoilt but near enough to walk down to the shops, bars and restaurants in Laganas.
Zakynthos is a beautiful island, the greek people are friendly and speak remarkable english.
Don't do the Thompson Shipwreck trip though as at 36 euros per adult and 18 euros per child you are better off hiring a car and doing the trips independantly, Shipwreck tour cost us in total 36 euros for 2 adults and 2 kids and I think paying any more you would be disappointed with it but never the less it's essential to see it I think.
Gerakas beech is superd and the Blue caves are gorgeous to snorkel in.
We are definately coming back!