I'd personally rate these two 6-part serials as some of the best drama the BBC *ever* produced. The acting and direction is outstanding, BAFTA-winning stuff. Alec Guinness is superb, but there's over a dozen other cast members with hardly a duff performance between them - Beryl Reid for instance is excellent. The stories themselves are great, with complex plots that knit together perfectly by the final episodes, and really repay repeated watching on DVD (heaven knows how viewers kept up when this was originally broadcast once episode per week! If you missed one you'd be stuffed!)
As other reviewers have noted, however, this "box set" is simply the BBC's existing DVD releases from 2003/2004 put in a new carboard box. The sound and picture quality really are a bit mediocre at times. Given that this is one of the jewels in the crown of the BBC's output, and there's interest from the film version, you'd think one of the suits at BBC Enterprises would see fit to have this material remastered. The sound could definately benefit from a clean-up with modern techniques... the picture was all shot on 16 mm film, so it's not capable of being "high definition" resolution, but other releases have shown that nonetheless, the superior compression codecs on BluRay make 16 mm film look considerably better than MPEG munging imparted by DVD (particularly if the original film negatives are still available...?)
Considering the BBC regular undertake this kind of remastering work for dodgy old episodes of Doctor Who, you'd think they'd make the effort for this!
So - 5 stars for the content, but only 3 for this repackaging, which smacks of the BBC trying to just flog a few quid out of their back catalogue without giving it the artistic respect it deserves.