EDIT: This is the newer style of Primus fuel bottle, with a matte finish instead of the glossy finish so ubiquitous in the fuel bottle market today.
I was worried that a 1L fuel bottle was a little large, so i got the smaller .6L, thinking that it would still be good for three+ hours of fuel in addition to the two hours you get with the .35L.
For an extended weekend in winter country, that seems like a fairly good compromise.
The bottle itself is pretty much like any other liquid fuel bottle I’ve seen, and seemed no better or worse. I look forward to years of use with this bottle.