I've only had one experience with Kale and found that I liked it, but I found the taste was intense, perhaps it was the way we cooked it.
DD brought over a bunch of fresh Kale. She cut the stems out, cut it into bite size pieces. We steamed it in a bamboo steamer. It retained it's color and looked fantastic. But as I said, the flavor was intense, almost bitter.
I have looked at recipes on the net, but I not found out how to mellow the taste.