No, I don't have NI Kontakt and I don't have this sample library. Yes, I do like audio demo a lot :)
I'm sort of obsessed with a good dirty Rhodes sound, and I've produced something close with 4-5 effects on a Scarbee Rhodes. Your Rhodetron doesn't need any FX and it's better than what I've come up with. These synths 'sound' like synths. You've been able to accurately reproduce analog warmth in the digital realm better than any other soft synth I've ever played.
J.S. Greenier - songwriter / film & television composer - "The New Republic" (2011 Feature Film), "Whale Wars" (Docu-series).
What's more, the price seems very reasonable - 5.99 UK pounds.
More info: Rhodetron 73 - Mark 1 stage piano (Sampleism)