Huge fan of Anker products. Unfortunately, this one is going back. Worked great for a couple days. Went to use today with my 2016 15" MacBook Pro (only device plugged into the brick, using the original Apple USB-C power cable). System profiler indeed showed 60W coming in. The battery status showed charging and the brick got very hot, yet the battery percentage dropped rapidly as if the notebook was running only on battery power. Dropping from 100% to 10% in 2 hours, the brick clearly wasn't working, yet continued to get extremely hot.
Now, the USB-C port on my MacBook Pro that was being used is no longer working whatsoever (for power, data, or otherwise). Maybe I got a defective unit, but in any case, will now have to send my laptop back for repair...
UPDATE 5/25/19:
Got my laptop back from Apple today, issue confirmed. Required replacement of wiring for fried port and a new logic board.
15" MBP users - steer clear until this is confirmed to be an isolated case