I have used all sorts of styles of infusers: silicone "tea bags," traditional metal mesh devices of many types, tea pots with built in infusers. No matter what, I would get the surprise grit at the bottom or floating detritus OR the infuser was ineffective and the tea would end up weak. I bought this without much hope and I have to say I love it! The tea steeps perfectly and there is no surprise throat-tickling grit at the bottom of my cup (which is always fun to discover on the drive to work, cough cough). It is a really great product!