I'm less positive; when badly implemented it can mean that it's hard to get the bottle cap correctly attached - I had a bottle of sparkling water which literall

I'm less positive; when badly implemented it can mean that it's hard to get the bottle cap correctly attached - I had a bottle of sparkling water which literally went flat within a couple of hours recently because I reattached the bottle cap incorrectly. But in the grand scheme of things it's fine. Not something I'd especially fight to implement, but also not something I object to.