The only thing the grease pot has going for it is that it is cheap. It is not readily available most places even.
I tried it for a while for 2P = 4cups. It splashes over which is annoying since its not quite large enough for that when boiling.
It has no handle, so you either burn yourself with bandana, carry a heavy pot gripper, or rig up another way , and its still a pita to pour into freezer baggie or cup because too hard to pour with one hand with those methods. You risk spilling water or scalding your hand holding the cup/baggie every time you pour water.
Too big for 1P unless you are going to cook in it, which I dont.
I found the evernew 1.3L well worth the ~$50 to upgrade for the above reasons. I mean, seriously well worth it. If the grease pot had a handle like the evernew, it would have been tolerable, but I HATED boiling water for two freezer bags , or cups of coffee with that thing. It made something that should be so simple, a pita.
I did burn a hole in the side of mine trying to braze on a foldable handle though. Its pretty thin.