I'll also be picking up the NI Nylon String when it goes on sale for $50. Gotta get them all!
But I've got the
Evolution Nylon String, and the
Renaxxance Nylon String, so it's not like I'm lacking for nylon strings.
I'm a big fan of Indiginus' instruments, and if you've got the full version of Kontakt, I'd suggest checking them out. Orange Tree's stuff is great as well, but I just find Indiginus' instruments more fun to play. YMMV.