I've actually been doing that on and off since I think around last August. I've found it tremendously beneficial to overall feeling of well being, as well as my work ethic. Especially for programming, I feel much more involved and interested in my work so am usually able to work at a much faster pace. I also share the feeling of being more personable on LSD, as the days when I do microdose, I tend to have far better and deeper conversations with many of my friends.
I'd be very interested in experimenting with low doses of certain psychedelics, but the unknown quality, unknown provenance, full dose approach just doesn't appeal to me anymore. I wonder where you could find good quality crystal (or somehow measurable) LSD unless you pal around with very cool chemists. That's the big problem with interesting sounding illegal dugs.
I thought it would be an interesting experience, since I tend to feel more personable on LSD, especially during the come up/come down from it.