The concept is very interesting and I love the re-use/re-cycle concept, but I have to admit some skepticism at the plastic-y look of them. I am just not sure how well that plays in the landscape, but the concept is there for the improving. Maybe using more traditional earthen materials, or the idea of a more interesting and seamless wall to ground conversion (an alternative to gutters?), and certainly the concept of rain gardens being more prolific makes me optimistic. What do you think? How would you use them?