After only using it a few times, it started to smell. Even after I took it apart and washed each piece with boiling water, it still smelled. I had to throw it away after only using it for a few weeks. I was super disappointed in this product.
I had purchased two of these water bottles / infusers and they both leak. I put one of the bottles in my work bag to get to work and found the top had leak. Second time the bottle leaked in my gym bag after I was sure to secure the top.
Also it is very difficult to remove the inner infuser. I could not remove this for cleaning and needed to use a pair of pliers.