I would have given 5 stars but Unit is hard to roll. Needs bigger wheels. I planted my Pink Brandywine tomato plant in it after filling it with good potting mix and rain water. I didn't realize the water reservoir held 2.4 gallons so when we left for a week at the beach I hoped my plant would survive. When we returned home not only did it survive but it thrived while we were gone. This is the only way to have plants and be able to leave and go on vacation. I also didn't know there was an overflow pipe. I called Custer Service and the girl talked me thru where it was located. My plant was almost drowning in water but all is good now. I drained at least a gallon so my plant could dry out.