When I saw this posted I was going to get on and tell how good this is and it's a no brainer and the price but I'm glad the word is out. I love the GUI and how efficient it is. Top notch plugin.
My loyalty point where hard to get a hold of too. I kept going around in circles until I was about to contact support when they magically showed up. I was able to use them after that.
I dont lose any I already have. Everything in K12 is updated for me(Massive X, Kontakt 6, ect.). Not enough new in K12U to be worth it for me. I did the same thing from K10U to K11. It works, anyway and is a great price for what I wanted/needed.
I have KU10 but will just update to K12. This is about 90% Kontakt 6 transaction. That is the cheapest you'll get it and totally worth it even if that was all you get.