looks pretty legit to me. I realy like how they added the attachment for the three hoses to water the plants. very creative. i would definitely give that a try. the only concern i would have is not about vertical space but lateral space and how close together you could et your plants to eachother without those poles gettin in the way. but as i see they are adjustable. hope they are not too expensive i could have used those in my grow. give them a try and keep updated on how they work