The reusable coffee filters I must say is a fantastic idea. With having a mother who is crazy about coffee I can say how useful these can be. The only issues we had with the filters is the lids would not stay shut and would constantly pop open no matter how hard she pushed on them. Some ideas that might help improve this product would be an in-depth directions of how to use and label explaining what kind of coffee to use. Other than what I just listed everything else seems to be perfect. The light weight makes it easy to pack and travel with. While with the simplicity of the design creates it to be an easier wash. You can either wash it by hand or then use your dishwasher. Most definitely a great product for a coffee lover.