The trial packs are worth it. It's a good way to try the products out without a spending a fortune.
I got the Rich... I'm 3A/B-thick& coarse. I really like the HCC (detangles), Too Shea! (leave it in) & Weekly Deep Conditioning. I haven't had much luck with the stylers though-- not enough frizz control for me.

The Jessicurl site has create-your-own trial packs where you pick the products you want to check out.