Do you know if Anker will support the 7.5w speed?For me, I just have the Anker charger next to my bed and plonk the phone down on it to charge overnight. Saves a lightning cable as the Anker uses a micro-usb cord, and saves wear on my lightning connector.
I think wireless charging is a bigger thing outside the home. Coffee shops fit a standard pad that charges all phones as opposed to supplying usb and lightning cables, which invariable break/get stolen etc.