It's good, but will eventually break.
When it works it is excellent, but after a few months of use, the very fragile connection between the head and the handle will break. And then you have to buy another one.
It's still better than tea bags.
Made to use with all teas: a spring-loaded tea Infuser made of stainless steal and an alternative to mesh-type infusers. Simply fill with your favourite loose leaf tea, and brew in a small mug or teapot.