lo eskis i
I've never had any real "teachers" because many of them lock themselves into the student-teacher relationship and refuse to learn themselves. The one teacher I did take (for two months) was one I quickly surpassed in skill, who still insisted that she knew more than I did. This was right before she suffered three consecutive nervous breakdowns that were all directly related to the methods she used. She wouldn't listen to a "student" who knew that unless she stopped pushing herself, her methods were dangerous.
I have never been initiated into any magickal orders (yet) because I have found MOST of them to be more interested in politics, power games, ego stroking, and I'll-believe-in-your-magick-if-you-believe-in-mine than in actually doing anything of practical magickal value.
As far as how I feel about teaching... I advise people to learn from whoever you want, to never be afraid to disagree or abandon a teacher when the time is right, and to be very cautious of the people who step forward too quickly and say "I'll teach you" --- More often those types need you more than you need them.
A magician can also learn a great deal from non-magicians. For instance, a few college-level classes in Sociology, Social Psychology, Comparative Religions, and any Sciences can oftentimes be of more use than an entire bookshelf of texts on labelled "metaphysics/magick".
It is my belief (at this moment) that a magician's training should include ALL aspects of life, not just the metaphysical. Life itself is magickal. Life is the best teacher you could have.