I never have to worry about temperature fluctuations again! I need the heating & cooling feature for the Northeast weather in an old house. It’s been very humid when I bought this so it took awhile to get the humidity level to 66%. I’m still working on it as it’s at 68%. I have 65% boveda packs currently in the humidor. The device is quiet. I just hear the fan running. It runs all the time to circulate the air, which is great. The door provides a tight see and the controls are easy to use. My biggest complaint is the light is useless! They should have put led strips in between the shelves. If you want to see the hydrometer reading or your cigars you’ll be using your phone light.