It seems to be of good quality and durable.
On the negative side: 1. the rubber seal that closes the lid comes off easily and requires a lot of attention when fastening the top part, as it sometimes comes off during placement.
2. the edge of the bottle (in the metal part) is quite sharp and requires caution when washing.

It needs careful closing otherwise it drips. Also, you shouldn't lose the rubber band because otherwise it doesn't close well.