The new CC guide has literally a couple more problems around the cuttings than the rockfax pdf, all in the lower grades. It also has one or two other areas that look a bit crap and only have problems up to about V4.
If you're climbing up to about V4 then the CC might be worth a look, but if you're after harder stuff than that I'd say go for the pdf and save yourself £15, because the new guide just won't any have more relevant information in. There seems to be quite a good scene down there at the moment so on weekends there should be plenty of people around the cuttings to ask about other areas/problems. Or feel free to email me if you want any more info.
Cheers,
Chris