I've bought several Anker wall and portable chargers (and lightning cables) to keep the family's devices charged at home and during travel. 5V/2.4A has been sufficient, and PowerIQ has worked well for our needs. Having just bought a Nintendo Switch and reading up on USB-C, coming across the discussion surrounding Benson Leung/Nathan K's tests and reviews, looking for a way to charge my Dell XPS 13 9350 via USB-C, and the possibility of the next iPhone employing this connector, I feel like Anker would do well to focus on USB-PD and really clarify what their products support.
I just bought the PowerPort+ 5 USB-C with USB Power Delivery (Model A2053111) along with PowerLine USB-C cables, should be here tomorrow and will test these out. From my research so far, this PowerPort+ appears to be the only Anker device that supports USB-C with Power Delivery, supplying 15V/3A (and apparently even 20V/2.25A). It would be great to have a few more options, perhaps a smaller PowerPort2 size, and even better, one with dual USB-C PD ports.
Also, portable batteries that can provide the full USB-C PD spec are in demand, let's have something from Anker to compete with the RAVPower RP-PB058/RP-PB059