Homegrown-hydroponics Grow cabinests

I been looking around for the easiest and automated systme and homgrow hyropinics seems to have the best i am going to invest alot of money about 25 k wanto to buy 4 of the 80 plant dual chamber systmen which is fully automated and 8 feet x 8 feet. Wondering if anyone have used any of these systems and what kind of yeild I can expect wold appreciate any feedback.