Currently, I have an ultra-tiny, discreet grow space with less than optimal environmental controls. You would be God smacked. After three years with different strains, comparing, I found Purple Bud Auto to be best choice for my needs. Purple Bud flowers faster, all three Purple females grew/flowered at same (faster) rate, which overall was approx 2 weeks ahead of 2 auto Skunks and 1 auto White Widow. The faster flower rate does not seem to compromise final quantity or quality, but I'm not that exacting with scales and pencil notes, just impressions. Nice cola density and good frost. As I said, exceptionally lousy grow space and control - yet Purples seemed to stress less and have great resistance and stamina. Very few yellowing leaves. Lastly, the Purple cola color is a bonus. It's an eye-candy pleasure to peek inside and see the colas increasingly turning deep purple/blue. Paying close attention daily with a magnifier and curiosity over weeks - I sense the purple intensity and color spread has a fair degree of correlation with the amount of trichomes erupting and THC therein. A colorful, visual indicator of the THC production in real time. Color correlation with maturity could be said of other strains of course, but the deep blue is striking and more obvious. I REALLY like this strain at this moment, its my fav to date after quite a few years and some years were open air grows.