I just started using this yesterday. One thing I am working on changing is I need more height so the clones can grow. IMO the best thing you can do for cloning is bottom heat, this comes from my days in High School Horticulture class. All our cuttings beds had heat cables to keep the plant warm and stimulate root growth. I also use a rooting stimulant, you can get powder or liquid. I bought this setup few years ago and use it to start my veggie seeds in the spring for my garden. So underneath the plastic tray where the clone is there is a heat pad that plugs in to electic outlet. I took this clone yesterday and so far no wilting. It does stay warm and moist inside the covered try, I will just keep an eye on it so I don't get any rot or mildew. I bought top tray and heat pad at Home depot for less then $30.00 total. it is made by Jiffy