Gijs is very kind and made this tutorial video, which will help users to learn the power of xNURBS (You can watch it from youtube):
“https://www.youtube.com/watch?v=ENn00_ZnU8I&t=3s”
(This video shows quad-sided and n-sided surfaces created by xNURBS.)
@gustojunk
We are glad that xNURBS satisfies your requirement. We would be very interested to see your work if you would like to show them.