As I get older I have had more and more problems opening up bottles and jars. An extemely frustrating experience. I can't call family to drive an hour to get to my place just to open a jar; or asking neighbors to help becomes embarassing. So I bought myself this little tool - thinking how bad can it be.... This is a little GEM of a tool and it does EXACTLY what it says it will do. I have yet to encounter a bottle or jar it has not been able to open!!! Some may claim it is slow - but compared to beet juice stained clothing, olive or pickle brine on your blouse, etc. I do not consider it slow. I also love not hurting my hands and wrists - and I do not miss the frustration of struggling with jars/bottles. Being mechanically challenged, when I first saw it - I was concerned about learning to use it - took just about 5 minutes and 1 jar - its very simple to operate. My first jar I had a problem in that the tool did not open the jar -- NOT the tools fault - I didn't have the jar placed correctly - once I got things where they should be - bing badda boom the jar was open. I had been trying for 3 days with my hands and with the other so called jar opening hand tools I had in my kitchen to get that jar open. I would not only recommend this product to everyone I would say it should be a must for for anyone who has any hand, wrist, or or arm issues - or like myself getting a bit more mature.... I will never again be without one of these in my kitchen.