Top critical review
Does not fast charge Galaxy S8 or S9+, good build quality
July 15, 2019
Bought this for my wife's Glaxay S8 with the same understanding others have had that it would be a fast charger. Found that it did not actually fast charge, and rather than act like a 30W charger (15W/port), it charged at the same speed as a 5W charger I had laying around. Tested with my S9+ and had similar results.
Contacted Anker support; I have had excellent service from them in the past with issues and this was no exception. They claimed the charging chip in the S9 is not compatible with the fast charger in this device, and offered to send me another charger as a replacement. The Anker PowerDrive Speed 2, model A2228, I received not only does fast charge both of our phones, but fast charges both of them simultaneously. On this page: https://www.amazon.com/dp/B01K9MQ8WW/ref=cm_sw_em_r_mt_dp_U_xTplDbYA1DMRG
If you want a fast charger, look at the PowerDrive 2 for ~$8 more (July 2019). If you don't need fast charging, This has the typical high quality construction I have come to expect from Anker and you get the great customer support to go with it.