So the design is ok and plants seem happy (5 stars for this part). I am a very mechanically inclined and give the instruction book 1 star. Holy frustration. This is a project that should ordinarily have taken my dad and I an afternoon, but this was 12 solid hours because of needing to take components apart and tweak and reassemble all because the building instructions jump all over the place and are extremely unclear in places. I think the person that wrote them got boredtired by about instruction 28. From then on (31 more instructions) the steps get very ambiguous.