Opinions on paid Dead guitar courses?

Does anyone have a strong opinion on which if any of the paid Dead guitar courses is worth going for? With black Friday coming up, I figure this will be the time to buy one.

I need something that will take me from competent to advanced and i think I need more structure to a course rather than just some "here's the solo to Althea" video content.

I have tried Grateful Guitar Lessons but while the instructor is a great musician I don't find his style particularly engaging (plus the one video lesson I bought has pretty old video so its hard to see in detail what's going on).

Toby&Davy's one I hear is kind of basic.... Jeff Williams Guitar seems like what I want as his big big course contains what looks like a good mix of theory and practical stuff. But its expensive!

I'm happy to make the investment (especially as Black Friday is all about paying the price that something is actually worth!) but could anyone give me a steer on what might be the right course for my level and objectives I'd be extremely thankful.