I live in a two-story house with a basement walk out level. My house is air conditioned, but I always had a problem with the humidity level building up in the basement during the hotter rainier months. This caused a musty smell as well as a little mold and mildew forming here and there on some surfaces. I bought a Waykar YDZ-120 to help me solve this problem. I was surprised at the amount of water this product was removing from the air in the basement. It wasn’t long before the humidity was less than 50% and has remained under control. Through humidity reduction and control, the musty smell and any mold and mildew problems were mitigated.Having the Waykar dehumidifier controlling the basement humidity also helped control the humidity in the rest of the house. My AC unit doesn’t have to work quite as hard with some humidity control assistance from the Waykar. My house is more comfortable on every level now.The Waykar YDZ-120 dehumidifier worked so well in my house that I bought another one for use in my woodworking hobby shop. My shop is not air conditioned so during the hotter rainier months the humidity can get quite high and hover in the 65% to 75% range. Not only does the high humidity make it more uncomfortable for me to work, but it also caused rusting problems on my tools and power equipment. The cast iron on my table saw, jointer and planer and even my hand planes were always developing surface rust. Mildew and mold were also forming on my steel tool boxes and other surfaces. It has been my personal experience that rusting, mildew and mold no longer occurs in my shop when I keep the humidity level under 50%. My Waykar dehumidifier is set to automatically maintain a 40% to 45% humidity level which has eliminated my rust, mildew and mold issues and makes it so much more comfortable and healthier for me to work in my shop too.• I like the fact that the Waykar TDZ-120 is “Energy Star” certified. This means it uses less energy and works considerably more efficiently than non-certified dehumidifiers.• It like the “Inside-Drying” feature which when activated automatically dries out the dehumidifier coils to help mitigate any internal mold formation.• I like the 1 gallon internal removable water drain tank with carrying handle that allows me to use the dehumidifier at any location in my house. The Waykar will automatically shut off when the tank is full and alert me via the control panel display that the tank needs to be emptied. I can also attach a drain hose to the unit for continuous drainage via my floor drain in the basement.• I like the “High Low” fan setting feature. I set it on high to get the humidity lowered to the desired level and then switch to low to quietly maintain the desired humidity.• I like the “Child Lock” feature to keep the curious grandkids from messing with the setting when they come over for a visit. When activated fan speed, mode and humidity settings are locked.• I like the internal ‘Air Filter” which is easily removable, washable and helps keep the dehumidifier coils clean, so they work at maximum efficiency. A fine nylon mesh is attached to the removable panel that works well as the filter.• I like the fact that Waykar dehumidifiers come with a 1 year warranty but they will extend the warranty to 2 years simply by going on-line and registering your purchase.• I like that if you email Waykar Tech Support with a problem, concern or question they are very responsive.I have attached a few pictures of my favorite features.