Lots of answers! Cool.
I don't know where to start.
Many of you say that you wouldn't use it because you don't know enough about it. I'd agree with that. Just as background, in 2002 I joined a training coven and attended classes and sabbats for a year. Then I was initiated and allowed to join a coven which had been established since the 70's. I stayed with that coven for a further two years before leaving it to be solitary.
Even despite the training, I'd always be VERY careful when doing any sort of manipulation of energy.
As for Karma, I do believe in "cause and effect" but not necessarily the law of three (some witches think that what you do comes back to you three times). Therefore I always analyse my intentions and only work magick for healing, gains of needs (not greed), and protections (or rarely, banishing what isn't needed or wanted).
My personal results....well let me think which I'm willing to reveal and I'll let you know. By the way, I haven 't performed any "spells" for months and that is the norm for me. I am more pagan than I am witch.
Daystar: I'm no Glinda.
I'll post a little more later on.
Sirona