I do one every year...I have a 12x16 greenhouse(hoop) that I make a cover out of 6 mil black plastic.I cover at 6 at night and remove after dark to keep the humidity down.It's NOT auto but it does one heck of a job!I usually harvest between 2 and 10 pounds out of my set-up.
Dogznova.....Most peeps want a little more bud than the autoflowering strains seem to produce. Waterdog