i have tried donna marie's miracurl jelly and it did not work well for me...maybe i used it wrong...i don't know...
darcy's botanicals curling custard worked well for me...so did ecostyler...but now, i just make my own using xanthan gum.
i did just purchase kinky curly as a compare/contrast to my own gel, but i have never used kccc before. i have heard very mixed reviews on it.
Tonidaley80 (4b hair) on youtube used a curling cream on her hair and it came out swimmingly well. i don't remember the name, but it is one of her more recent vids (within the last 2 months).