Fancy Butlins is a great way to describe it. It’s overpriced for what it is. I find the older kids enjoy it more. We took my little girl when she couldn’t quite walk (10 months) but was cruising and went with another family with older kids (10 & 8). There wasn’t much for ours to do but the fresh air was nice and seeing the older kids enjoy it.
I certainly wouldn’t pay school holiday prices but would go back for if I could get a cheap week. No chance now that my little girl is at school and I work in one