We visited the one in Lanzarote, with at the time a 7,6,3 y old. was totally unsuitable for children under 12 or so
every ride had height restrictions either be over a certain height ruled out all ours, or under a certain height which meant all 3 had hardly any attraction they could all go on!.
its well kept, and did have plenty of attractions, food was ok, I would suggest its fine for yng teens and let them away by themselves.
Mom and dad both lifeguards in the past so we where impressed by the amount of cover and control.