Yes, I ordered G.K. awhile ago, because I wanted a sturdier white card base and also vanilla. While I like SU colored cardstock I felt the white and vanilla were not good for a card base (not strong enough). I did buy some other G.K. colors as well, but haven't used those yet. (I do have a lot of SU colors)
I was VERY happy with Gina's service and quality of cardstock....