While it isn't for daily use I'll agree but it is handy for emergencies. My friend and I went to a party out in the country he had cell service and I did not. To summerise the long night we got lost his phone went flat (he didn't charge it the night before) and I was still at 70%(ish). So to use the gps to figure out where we were and call someone out to get us we used the reverse wireless charging to bring his phone back up.