They intrigue me, if I get one I’ll get you a review. I could care less about charging a phone (LED flashlight is another story), but the TEG powered fan to force air into the combustion chamber seems a good idea.
BioLite burns hot, clean and super efficient. And is compact and feather weight. Great if you are camped in one spot, but if your whole life is reduced to one bag, you best commit the space to jerked meat or nuts. Or 2 bricks of 22lr.