Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Start seeds right!

I am a backyard gardener, and purchased this item last season to start all my own seedlings. It worked quite adequately and brought the temperature to a good germination range quite readily. My seeds started right off, and then I transferred them to a tray with grow light after they germinated. The plastic isn't the thickest and although I will get at least another year out of it, I'm not sure how long the lifespan will be. I also have used the unit without purchasing the dirt pellets and just placed a pot w/ starting mix in it. The heat mat and dome are still effective to get things going.