Worth it. Better than practise books for some subjects
My daughter begged me to get her the 3 month subscription in the built up to exams and I am glad I did. She certainly used it a lot for any revision that required recollection of facts, quotes and formulas, particularly science and geography. I think it's a much more motivational platform for this generation over practice books to have it all data driven and to check progress. It was good as a parent to see how much time she was spending and what progress was being made during revision sessions. Will use again in the run up to exams for my other children.