Mine, in use.
It really only takes using this thing once to realize disposable propane canisters are hilariously wasteful. It’s easy, cheap, and just plain feels better to use. It threads right into your camp stove just like the little green ones do, but it’s easier because it attached with a four-foot hose, so you don’t have to deal with the canister right next to the stove. It comes with an insulated case, which is apparently helpful if you’re camping in snow, but I don’t do that, so I can’t speak to whether that actually matters or not.
What I can speak to is that it simply feels better not to just rip through disposable metal cans. With the deluxe growler you get a nice tank with a carrying case that you will have for the rest of your camping life. Each refill takes the place of something like five disposable canisters. Use it long enough and the Ignik tank will take on some dents, scratches, maybe you put on some stickers, and it becomes a cherished part of your camping kit, imbued with memories and dirt from favorite experiences. That’s priceless.
MSRP on the growler is about $150, but looks like they’re on sale everywhere for less than $100.