Has anyone completed a grow with this unit, looks like most start a grow then after a few months you don't hear from them again. Would like some real info please.
There are several SS400w journals that you can check out. Unfortunately, you are right that a number of people do abandon their journals before they're done...for several reasons.
Check out journals by m00chy, juicestain, dustydirt, photosynthesis and beefxer...
Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.