Kleen canteen-mouth not wide enough to store things in--I've seen some nice kits made using a wider mouth bottle e.g. nalgene.
The advantage of being able to boil water in it is moot considering all you can do readily is boil water in it...a simple pot allows far greater variety in cooking where you might need to get legs/ribs whatever in the pot and moreso cleaning afterward....I say spend the money on a nice pot like a MSR Titan...trendy at best. But somewhere out there someone has a nalgene shaped metal bottle with a wide mouth, a better choice I think.