I’ve now been using the unit for a week and have run it over 20 times for distilled water. A few things I’ve learned that may help others.1. Don’t run it dry. It takes about 4 hours to produce about a gallon of distilled water, so I stop it after 3 hours using a countdown timer. This makes clean-up easy as the left behind minerals do not get burned onto the bottom of the water tank.2. Let it cool for an hour or so between uses. Once cool disconnect the plug from the upper to the lower unit, take off the top and put it aside, pour out the leftover water from the bottom and wipe out with a soft cloth or paper towel, wipe off the upper unit being careful around the vent that the water vapor moves through, then put both either on a towel or over the edge of a sink to dry. Also wipe off the soft seal on the top unit to keep it clean.3. Mix up a little vinegar with water and use it to wipe off the inside of the upper and lower unit, then wipe with a wet soft cloth. Let dry.4. You may notice some water outside the unit when you take it apart, but I’ve found that with my unit it comes from the water on the top unit that drips off when open. At first I thought it was leaking, but after carefully checking it is not, but as it takes some effort to get off the upper piece water vapor condenses around it.For the price I hope to get a few years out of this device. If I notice anything else I’ll update this review. For now i consider this worth the money, but it does require care to maintain it. The key piece of advice is do not let it run dry and things should hopefully be much easier.