I'm not rating this on the part itself, but rather the misleading product listing.
This product is listed as: CORSAIR VENGEANCELPX16GB (2X 8GB) DDR4 3600(PC4-28800) C16 1.35V Desktop Memory
Part number is: CMK16GX4M2Z3600C18
When I received the part, I noticed the C18 on the back of the box. I checked it with Corsair's site and sure enough it is listed as 3600 C18. I thought that the wrong part was sent but it turns out that this is the right part but it's C18 and not C16.