Professional Ultrasonic Cleaner in Black - Ideal for Jewelry, Glasses, Dentures & Small Parts Cleaning | Fast & Efficient Ultrasonic Cleaning Solution

I decided to purchase this item despite the negative reviews. I was a bit apprehensive because the price was about $10-$15 higher than others I found.I wear 8 diamond earrings in my ears and rarely take them out so they get really, really, REALLY gunked up with hairspray, etc. Normally I use one of those jewelry cleaners that the jeweler gives you, and even after soaking for an hour, I still have to scrub to get them clean and it still doesn't do a thorough job.I used this unit with Blitz Gem & Jewelry Cleaner Concentrate I’ve had an identical cleaner for approximately 20 years. It has always given me great service. I decided to buy a new one in the event I wouldn’t be able to replace this one down the road.I bought this after a weekend of work around the house, having some dirt under my nails that literally had to be dug out lifting part of the nails ever so slightly. Do that for 30 minutes and you are in some pain, for several days actually. Remembering when I was in college helping a jeweler friend of mine we used one of these machines to clean our hands and jewelry after polishing rings so I went looking for one of these. I settled on this one, not sure why now, but over the last few months it has helped get all the dirt out from under my nails, no more detaching the cuticle. It is fantastic.For good measure my wife threw some of her jewelry into the machine and it came out sparkling. She is happy and so am I.For those of you that are handy around the house, pick this little baby up for your significant other for her birthday or Christmas, and you both benefit. For the lady of the house, reverse logic here, give it to him to clean his fingers and clean your jewelry too.This is an update to my original review below. Jewelry cleaner was wonderful when it worked. Then it died after about 9 months of weekly use. Beware that this product is not durable.----------------This cleaner works wonderfully. I use it for a diamond/platinum engagment ring, a white gold/diamond necklace, a pair of diamond/platinum stud earrings, and a couple watch bands. This cleaner gets all my jewelry looking brand new, and really cleans out the little nooks/crannies that have been impossible to reach with a toothbrush.Recently, I tripped outside and stuck my engagement-ringed hand into some muddy dirt to catch myself. The setting on my engagment ring is full circle of bead-set diamonds, so a ton of little spaces where dirt can hide. The ring band and setting was totally packed and encrusted with dirt. I tried everything - toothbrush, waterpik (several attachments), even the milk steamer on my coffee machine. Nothing got out the trapped black dirt behind the tiny diamonds. Then I bought this cleaner and VOILA! 3 cycles later, it shook out the dirt and restored my ring to pristine condition. SO HAPPY!!IMPORTANT TIPS:1) Water alone isn't enough. It's just common sense that water won't get rid of oily film.2) Use HOT water instead of cold or tepid water. Doesn't need to be boiling, just really warm.3) Use 1-2 capfuls of Mr. Clean or similar cleaning solution(no special jewelry cleaner needed)4) Run several cycles (the most I've needed was 4, for the really, really dirty stuff)Wish the max cycle length went beyond 480 seconds (8 min), but this cleaner couldn't be easier to use, and couldn't clean any better. I love it!I make jewelry so this is pretty much a must-have for me. I wanted this larger size for various reasons. Does a wonderful job on my eye glasses. I use several strengths of lenses when making my jewelry so they all need a good cleaning occasionally. Also, I clean my silver & gold & plated jewelry components before using them in the jewelry item. For those of you who are not having good luck with this kind of gadget, THE SECRET IS TO USE HOT WATER, then mix in a tiny amount of ammonia in the machine. Heat plain water in the microwave till hot, NOT Boiling! The Hot Water makes a huge difference! (Don't heat the water with the ammonia in it, however). For my plastic rim glasses, I use only WARM water with a tiny drop of Dawn dish-washing liquid. Hope this helps.Para muchos de aquellos que compramos aqui en AMAZON y son de habla hispana.. paso a detallar mi experiencia.El aparato funciona muy bien y limpia las cosas de uso diario MUY BIEN y mas si se hace con agua caliente o agregandole algun quimico (limpiador multiuso ej)Es ideal para joyas tipo anillos - pulceras - cadenitas y cosas delicadas como relojes.CAundo esta muy sucio es necesario ciclos largos pero por lo general con 180 min es mas que suficiente.Mi experiencia fue muy buena!!! deja las cosas muy nitidas ! En especial cuando es joyeria o cosas de metal.ATENCION!!! No se confien este aparato que es para LIMPIAR y no para restaurar, Asi que si esta rayado - oxidado o gastado .... No esperen un milagro. El articulo quedara limpio pero con los mismo detalles.Works great, still working after several drops on the floor and broken lid hinge. Still no problems with harsh chemical used in it