Karpov's Russian School of Chess with Roman Dz. (DVDs)

Wondering if anyone has these?  I see that they are now available for digital download at a very good price (not going to link because of spam, but you can find them with google).

I know Roman's stuff is supposed to be hit or miss (I've never tried any of it myself), so I am a little nervous about buying it without hearing a review.

Any opinions?

So just in case anyone in the future has the same question that I do and ends up searching for this, these are very basic but I think they'd be good for someone just getting into the game.  Of course the production quality is pretty low, considering they are from the 80s-90s.  But the content is good, although I found it a little below my level.