The strainer on these is fantastic – sturdy, big enough to give any tea enough room to expand, and fine enough that even little rooibos bits don’t go through. The lids fit tightly, double as coasters for the strainers, and if you break one you can get a spare for only a couple dollars. The mugs are nice and thick, so if you preheat them they really hold the heat well.
In all honesty I have four of these – a regular size at my office job, a large perfect mug (16oz) at my uni job, and two at home (3/4 were gifts). I also have a Brewt, a whole pile of teapots and other brewing devices (hehe), and I don’t use them nearly as much as I use the perfect mugs.
A cautionary note: these last and wash quite well except for the matte finish ones, which scratch, stain, and absorb tastes super easily. Double check each design, too, as lots of the special ones (metallic or colour-changing) can’t be microwaved and shouldn’t be put in the dishwasher. Other than that they’re excellent.
