Thanks for the warning about the demo mode... If I get another Kontakt library, I'll be sure to get something that supports the free player.
There's actually a
cut-down demo version of 1st violins from
Concert Strings 2 that gives a pretty good idea what that library sounds like. It's limited to an octave starting at middle C. And yes, the demo timeout is irritating.
The
Pop/Rock Strings is basically a "light" version of the
Concert Strings II, with samples at every other note instead of every note. Given that the Fairlight used a single sample, I'm not in a position to complain, hrm?

(Interestingly enough, the Fairlight's recently been revived in a number of different forms... But that's another off-topic thread).
Does anyone else have any experience with any of these libraries?