This does a great job. However, I have 2 caveats that do not effect my 5 star rating.
First, in order to get even drying of the material you are dehydrating, I suggest you rotate the trays periodically. The bottom layer will dry out quicker than the upper trays. So, I found they dehydrate more evenly if I removed the bottom tray after about 45 minutes and put it on the top. I continued this process until my jerky was done.
Secondly, I do not put the trays in the dishwasher. The tray grates do not seem to be a high guage of plastic. Therefore, I felt the heat from the dishwasher drying step would degrade the plastic over time. Just a preventative measure on my part.
Otherwise, everything else is fine.