This is an overall solid guide from The Wirecutter crew. I too think the CODE is one of the best mechanical keyboards you can get, especially for Mac users. I personally hate the Mathis keyboards.

In a rare miss, I think they do a disservice to the Pok3r keyboard, as I find everything they say about it to be incorrect. The build quality is excellent, and I suspect they are seeing a difference in the WASD model it sounds like they tested. Further the high pitch whine is insane, but a firmware update fixes it right away.