The product arrived and was put to use immediately. Worked very well cleaning my wife's diamond rings and earrings. She even tossed her glasses in there and we were both amazed with results. This is the first ultrasonic cleaner we've owned so I don't have much to compare it to. All I can say is, everything we put in the cleaner comes out sparkling. It takes very little time to complete a cycle and isn't very noisy. Great buy!