Realise it might not be worth it for me. Sometimes whenever I use technology for study I just somehow end up wasting time on some site like youtube or music.
I strictly avoid my laptop during study, other than for writing some English drafts or printing stuff off. Its not gonna work out for people like me. Hard copies and book are ten times better for me. However I would have liked if someone could explain the content to me like they do on those videos.
If you can get it for free through your school, it's a great resource. It's not worth the money, otherwise. I use it for biology, chemistry and physics, and I think it's useful, but I personally don't think it's worth the money. Not to mention the 'interactive' activities are really basic, and the quizzes are <10 questions, which aren't randomised from a pool of questions, so you get the same questions in the same order every time. But it's not bad, it just isn't very good.
My school provides StudyLab and i have purchased HSC Hub.
Personally, I find the HSC Hub videos much more engaging and concise (I too am very distractible), though I've watched both for almost all of chemistry and physics and there is very little which doesn't overlap (if anything, HSC Hub has better facts and side notes).
For the cheaper price, it's certainly a valuable resource.