The start was very problematic until I went through the troubleshooting pages and videos to discover the heater was not plugged in. I have since run one cycle and I am hoping that will be the end of the issues. Quality control at the factory needs to be improved.
I debated on whether to order the medium or large freeze dryer. Glad I purchased the large one along with the oil free pump. So far I’m very happy with it. I didn’t notice it requires a dedicated 20A outlet, so be sure you have one. Because I was putting this in an older home, I had to change the outlet to a 20A type outlet as the freeze dryer plug has one horizontal prong and one vertical prong instead of the two vertical prongs we normally see in the US.