Absolutely! Someone sent me some custom polyClays from SunFly and they were nice but I still want to get my hands on some of the Lucky Dragon ones.
I bought my first premium set of the Lucky Dragon ceramics and I love them.
To answer your question about them standing up I am not sure. It’s so hard to find people on here with stock PolyClay chips from SunFly. I’ll keep you in mind if I find some!