The only gripe I have about this system is that the strainer doesn’t stay level in the cup. Yes, I know this is a minor gripe, but sometimes I’m a little bit compulsive, and you would think that a strainer/cup/lid designed for each other could fit together PERFECTLY. I also like to fill the cup up as high as possible. Since the strainer isn’t level, I often fill the cup just a hair too high for the low end of the strainer and get a few leaves floating over into my tea. Besides this minor MINOR complaint, I love it!