I have the Aeria Bottle on my Willier. During 70.3 Ohio last week, around 30 miles in the bottle launched from the bike. Unfortunately, I was using the supplied Garmin mount, rather than a dedicated mount attached to the aero bars. I had to stop mid race and go back for the bottle only to find my Garmin Edge was rocketed into a corn field.

The instructions mention some sort of retention clip "clicking" when it's locked in or something, but my bottle has only ever seated with pressure and the clamshell like top pressing down on the bar. I am no longer confident in it and will not be running it in the future.