Fantastic. Never have to move it or take it apart to clean. Best humidifier Ive ever had. Fills so easy, from the top, just lift the lid up - fill - and put it back. Its super quiet, love the blue light, full reservoir lasts long too. Puts out a good amount of spray, and variance per preference. My only Con would be the difficulty in pushing or activating buttons, if you dont gentle touch in the exact right spot, it doesnt register. So I spend some time moving my finger around for the sweet spot. Im gonna buy 2 more for my house, regardless. They are totally worth it. Havent tried oil tray for aromatherapy yet. I only use at night while sleeping, but I havent had to clean it yet and its been over 6 months........You wont be disappointed.