Went there 2 years ago on Sun Holiday.
The caravan we stayed in was tiny and miles away from the club, the pool was in need of painting.
The activities were brilliant for our kids (2 & 5 at the time).
Wherever you go to outside of the park you have to drive, there's not much within walking distance.
I know I've painted a gloomy picture but overall we enjoyed it.
If you have the chance to pay for the upgrade I can well recommend you do it, you won't waste so much time waiting in queues for bed linen, checking in etc.
We had a couple of days off the park, we went to Rhyll and Conwy Castle, can well recommend both.
Hope you have a great hol.