Review (5/5): overall good with one quality control issue that was easily fixable.
I got this a month ago. I only just tried using it today for a vacation trip. the silicone bottle feels very good and durable. One of the three bottles leaked air and liquid. On further inspection, the silicone lip had a small fragment still attached similar to being tongue tied (where the lingual frenulum is still attached to the bottom of the tongue) preventing the silicon from wrapping completely around the plastic throat piece so when the cap was screwed on, that area did hot have a good seal. Carefully using an x-acto knife to detach one side then just pinching and pulling off the piece, the silicone lip was able to now completely cover the plastic throat piece, creating a solid seal ( fortunately there were no injuries since I am flying out tomorrow for vacation). The small blue container is very, very small, probably only useful for storing contacts.