Mostly positive article at Kde News.
User seems to have had a little trouble downloading iso, booting and installing but still enjoyed knoppix.
She also finds Knoppix.net faqs a little geeky

Here's link to article :-

http://dot.kde.org/1057331619/

cheers
rob
ps I've never experienced any booting or installation probs!? Anyone else had similar experience to Savanna??