This is my first fuel bottle with a child resistant cap. It's easy to work even with gloves on (was just camping yesterday in 24F temps) and the standard high quality you would expect from MSR. as an FYI...in the past 30+ years of camping I have used other aluminum fuel bottles with all of my white gas stoves (including several MSR stoves) without issue.
This review was written in the old system and had content requirements that are different than reviews written today.