The unit works OK for the price. That said I would NOT buy one again. Firstly, and I hate to use the word 'fraud' but the tank holds, when filled to the recommended line, 1.25 quarts! Not even close to 2! The heating function is erratic; it works, but does not hold a steady temp. The timer's feel is quirky- it feels like something is slipping, or moving with the dial from the inside, (least of the issues). Most annoying is that within months of purchase, the heating indicator light failed. Not wanting to be without an ultrasonic in the shop, or going through the trouble of sending it out for repair, (might be something simple- loose wire) I tried to contact the company by phone and Email to get an OK to open it and check, without voiding the warranty. Weeks passed and I heard NOTHING. My advice would be to spend an extra hundred on a better unit... I wish I had!