I went in September with 2 kids under 2 for 5 nights and it was about €600. The cost off season is about half what you will pay during the summer/over Christmas.
Pros
The shop down there was a lot better than expected and quite reasonable for prices. Very similar to a Tesco express with a fully stocked off licence.
The pool was great regardless of age and caters to all. There was a class for very young kids on before the pool opened to everyone else.
The accommodation was finished very well and we had loads of space with full cooking facilities.
Good choice of places to eat.
Wide range of activities.
Easy to get around. We were about a 10 minute walk away from the village which was perfect for us.
Great spa on site.
Every restaurant had a soft play area for toddlers.
Great playgrounds suitable for all ages.
Cons
The food options are very similar enough in each restaurant. Not a huge number of healthy options.
Not a huge amount to do for the under 3s. A lot of the classes have age restrictions.
No babysitting service like other CP sites.
I will definitely be going back this year as I have zero interest in getting on an aeroplane with 2 young children.