My new IRoast came in this week and I am roasting my way to coffee happiness. The machine is so easy to use that it took all of the fears I had about bad roast/wasted beans away. If, I feel that a progam (either one of the two Presets, or one I program) is going to long I hit the cool button and a very efficient 4 minute cool down cycle starts at once. The recommended programs from Sweet Maria's also seem to work well, and, the bean color changes were easy to see, hear, and, smell. All chaff is held in the collector which is easy to clean by just brushing it out. The machine also has a vent connector that you can hook up to 4" aluminum dryer vent to get the smoke diverted outside. Anyway, since I live in a house that gets started in the morning by coffee I think that this is one appliance that will be well used instead of relegated to storage. Fresh coffee Rocks!! Special thanks to CastleCrest for his help and encouragement.