The only place I ever need a portable battery is at Disney, so I opted to use the fuel rod! I bought mine at the airport, so it was cheeper than purchasing it at Disney. It did a fine job of charging my phone but I only got about 1 full charge out of each rod before I had to swap it out, which didn't bother me at all but does bother some people. I like that it fits easily into my fanny pack, and that I don't have to worry about recharging it (my biggest issue with other portable chargers I've owned are that they are never charged when I need them, and I always loose their charging cord!). its not a super heavy duty charger, but if you are a person that really only needs a portable charger when they are at Disney and won't be bothered by swapping them out, then I think they are a great option! I've been using it for a few years now!