Answers the question: do I buy one or just buy the food online?
Good program! A couple of things - shelf temp on removal should be 100-125. Almost - not quite - too hot to handle. At least on mine. Some of the newer programs may work different and upgrades are never what they’re cracked up to be. And I always put my o2 in last because I don’t want them exposed any longer than necessary. So when my bags are full, then I open my jar (I vacuum and store my o2 in a mason jar) and take out what I need and close it back up FAST! When stored properly the o2 will suck the air out of the bag so no need to vacuum.