Well, firstly, the little sample packaging needs to be changed. That thick aluminum foil type cover is super sharp, which would be alright if it opened easily in one peel. However it tears and comes off in tiny shards, so going back to grab the tiny piece that is left results in an even smaller piece to grab. So both times, trying to free the pod (pack of two), have resulted in a pretty nice cut (on the knuckles, no fun) from a slight graze from the metal. It's so sharp that it produces a cut that I have to keep tissue on for about ten minutes to stop the bleeding- so a fairly sizable slice to my fingers. I did use scissor to open a section to try and pop it out, however that metal foil is so strong, you have to peel it off which renders the above results. That being said, I was not wowed with the performance. While the glasses were shiny, there still were white spots on my glasses. I will probably stick with my liquid detergent and maybe experiment with some other brands.