Me and my husband took the kids in the summer and I think it is overpriced and over rated, heres why!!
The accommodation is clean but basic.
The staff are not very helpful, they are intent on selling you some discounted extras.
It is very busy.

The good things are the water park itself however it does have a child to adult limit.
This is 1 adult to 1 child under 4
1 adult to 2 children age 5 - 9
This is awkward if like me you have one under and one over. I was lucky my husband came otherwise I think we might have had a problem.
My daughter loved the little leak where you can paddle and slide about she was shreaking with laughter.
If you have an over 5 go for the jacuzzi's I could have stayed there all day.
I will go back but just for day or if we are to stay overnight I will find a b&b nearby