Love the tea infuser -- esp for cold brews.
It's really well made. Love that you can open it from either end. Love the super fine mesh of the holder -- keeps floaties to a bare minimum. I did have a leak once -- my own fault because I didn't have the gasket seated properly. I primarily use it for cold/room temp brewing. (I'm a traditionalist and still like hot tea from my favorite stoneware mug, so I use the tea ball for that.)