Hello Seeking,
I agree with much you say... Im glad you visited their web site... and could give us an overview ...
Speaking for myself... The first most important journey Born Again Christians are to take is Knowing Christ...
I don't know if Kabbalah will do this for you or anyone whether they are Jewish or not...
The Holy Spirit will lead us into all Truth that the Father wants us to have...
The second most important step Christians are to make is attaching ourselves to Christ to we can produce His Fruit,
Love and being Loving as Christ is, is the foundation for Gifts of the Spirit and growth in our Walk...
It is not for me to say that Kabbalah could lead a person into these paths...
If it is for you, God Bless...
For me I did all the study and research I needed to know all I wanted enough to center my attention on one thing and that was the Lord...
I'll leave it to the others here to define if its good or evil according to your research... Which seems excellant...