BOTTOM LINE: 1. I recommend this VEVOR Jewelry Cleaner Ultrasonic Machine. 2. The current price of ~$31 is a bit high. LIKES: - It does a reasonable job cleaning items. - Mixed results with glasses. Doesn't remove oils very well. Be careful using glasses in an ultrasonic cleaner. You can damage certain lenses. I only use with my reading glasses. - Decent quality. - Digital timer option is nice for the impatient like me. DISLIKES: - None.