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I received one of these as a gift last year. It was reasonably entertaining, and the kids sure liked it. Not enough so that I would buy a reload kit though. If you get the mixed herbs the basil will pretty much take over after a few weeks, and with continued pruning will come to resemble a bonsai tree. The pods are nothing special, just a plug of foam cut in half with a seed stuck in the middle. You could (although the directions expressly forbid you from doing so) even reload them yourself. I imagine rock wool would work just as well. Also the dripping sound goes away when the plants roots get long enough to reach the water below.