Of the two samples available, "Hohn StrMelody2" is more mellow, and "Hohner" is brighter.
I don't know much about analogue string synthesizers (I can't even name any songs that use one), but I've enjoyed playing around with these samples. I'm not sure if I'll use them for this project (the focus of which seems to be expanding from just the Pianet to all Hohner keyboards), but I thought I would note the existence of these Nord samples.