1st dehydrating machine ever bought & love it. Have truckloads of produce and fruit from the backyard and never knew what to do with all that food. I love how there is no clean up after the food is dehydrated, as it just “pops” up from the plastic mesh. And the machine is so simple to use. It comes with a booklet with suggested temperature and number of hours. I’m glad I didn’t splurge for the timer, which significantly increased the price of the machine. Good chance it will be on for about 12 hours, and I can plan ahead to be home when it’s about done. Plus I realize now there is no “set” time when it’s done as it depends on preference. Made some half dehydrated raisins, so delicious like in fancy restaurants; it won’t stay long on the shelf, but very interesting in food texture as it was the juiciest raisins ever. I bought Excalibur silicone sheets (sold separately) for all the trays, which has been fantastic with fruit roll ups and over-ripe fruit. Glad I opt out on the timer and splurged on the silicone sheets instead. There are cheap versions of Excalibur’s silicone sheets, but am afraid the cheap stuff may leave chemicals in the food. After all, this dehydrator makes the healthiest food ever. Family is addicted to the apple chips (nothing added, just slice and put in machine).