I got one for my overlanding van. Super useful for burning found wood. Too heavy to haul around in a pack. I got the bbq attachment and made a world of difference. It will charge a phone but you have to add wood for a while. I carry a solar panel that's way lighter for charging and you can find gasifier stoves that do the same thing really well -charging. They are 18 to 20 bucks, not super light but not having to carry fuel ads up. https://www.amazon.com/dp/B00O6RRR3Q/ref=cm_sw_r_cp_apa_glc_fabc_ZX21JG0K04QSN938EGJ0?psc=1
If I were going to get a stove for emergency cooking, I'd lean more towards this one:
https://www.amazon.com/Lixada-Portable-Stainless-Lightweight-Solidified/dp/B00O6RRR3Q
Actually, I wont say I "lean" towards it. I have one, and it's fantastic. Will burn most anything small you throw at it, and burns hot as shit too.
I have this stove: https://www.amazon.ca/dp/B00O6RRR3Q/ref=pe_386430_194179960_TE_3p_dp_1
It has a little dish for burning alcohol, or since it is a rocket stove you can stuff it with sticks and burn that. It boils a few cups of water in about 10 minutes, no matter if it is burning alcohol or wood.
The only downside is that all the fuels (wood or liquid) I've tried so far make my pots really sooty. I've yet to try Heet (gas-line anti-freeze) but I've been told it will burn cleaner.