My problem is that - like so many other faddish things - it sounds hyperbolish. I've read the material at the link and don't see much more than the hyperbole.

Girl Friday says: I use neem products to combat skin problems.
Rapaire: In the States, Neem is something you put on the ground to stop weed seeds from germinating.

olddude: Neem is an old secret of special military forces running around the jungle

Question: Where is this marvelous product/ingredient available?
Question: Does it do windows?