Honestly, I have no complaints whatsoever. This machine does exactly as it claims, and it does it well. I've spend hours at a stove constantly watching and stirring my oil, but I always dreded the 3 hour period of low heat and high maintenence. Those times are gone, I decarb my herbs, toss it in the butter machine, set it and forget. Not to mention, tinctures only take a fraction of the time! I can't wait to try out some of the recommended recipes for every day foods. Definitely a must have for anyone looking to make quality infusions or edibles.