This thing truly works wonders. I used to have to grind my coffee beans, soak them in a large jar or bowl, strain them then transfer the liquid into a container. It was a pain I am telling you. With this cold brew coffee maker all I do is put the ground coffee into the mesh filter, fill the pitcher and pop it into the fridge. Bam, Done. The leak-proof airtight seal is truly leak proof (providing you screw the top on all the way). It says dishwasher safe, but I haven’t put it into the dishwasher to test that. It is very easy to clean by hand. There are practically no flaws to this. If you enjoy iced coffee this is something you are going to want to get.