Hi.
Overview tutorials are valuable but for a suite like Komplete they can only scratch the surface. I'm thinking, in particular, of Kontakt and Reaktor.
They are both complex products that are a little hard to get into on the supplied documentation. The NI user forums (and libraries) are a mine of experience but it takes a lot of time to explore them.
I'd love to see an in-depth tutorial on both going into creating instruments and ensembles and, on the Reaktor side, firming up what the basic tutorials can teach you and going beyond into what's possible.
I've dabbled with both and never feel like I'm getting the best of them. I would consider a great, in-depth, tutorial as a good investment.
Regards,
Matt