It looks to me like he has twice as much space as I do, and my grow is going just fine. There's nothing wrong with growing in small spaces...yield will be less but whatever. You do what you can do. I wish I had a lot more space lol. My cab is 27"h x 11"d x 21"w. I know growers who have done amazing things in less, so it's very possible for Super to have successful grows in that space. I wish he'd get back here lol