really, not much to go wrong with these unless you abuse them... they're aluminum bottles to hold your camp fuel. they do what they're supposed to do, and I guess they do them well.
The only thing I wish they did was have the cap attached with some sort of lanyard so it will stay connected when you have the fuel pump hooked on. 4 stars

I carry these in my saddle bag of the motorycle when on long trips in case I run out of gas. Just took a 2003 mile trip and they worked great. Didn't need them but was nice to know they were there in case I miscalculated my mileage. 5 stars

Like everything MSR makes you can trust it not to fail. I've used these bottles for almost 20 years and in that time have never had one leak, dent, corrode, or in any way misbehave. They've been through 100+F to -20F, wet, shaken, bumped, dropped. No problems. 5 stars