After a months usage, Here are my thoughts :
*Design : slim, ridged - less prone to scratches.
*18W PIQ 2.0 port - after testing it on my HTC 10 (quick charge 3.0 device) the PCII 20000 charges just as fast, infact a tad faster than the QC 3.0 wall charger.
I actually prefer the PIQ 2.0 tech over the QC 3.0 protocol considering the levels of protection Anker offers.
*12W PIQ 1.0 port - Ankers original generic quick charge solution does the job for almost any device out there.
*8 LED wheel indicator shows accurate charge levels.
*PIQ 2.0 Input port - recharges pretty damn fast with my QC 3.0 wall charger.