The WRT1900ACS ranks #7 out of twelve tested AC1900 routers; a pretty disappointing showing. Comparing the Router Ranker Performance Summaries for both products shows sub-ranking details to explain the difference.

I had high expectations for this product, but they were not met. I should have put custom firmware on this device, but it has been submitted into my emergency "AP died" bin and I've gone with Ubiquiti now. Much happier place.

This router seemed like it was going to be just what I was after, plugged it in, set it up, it was easy to do, it seemed fast and it had a great GUI, then BOOM! it shut down and sat tying to restart. I had to shut it down, power off and then start it again.

Put quite simply: the 1900ACS is the best router that Linksys has ever built. Given their storied history in the industry and their humble beginnings, that's saying a lot, but so does this router.

My final verdict is that the router does deliver a premium experience, has fast speed and coverage and it is less expensive than before (the price did come down a lot over the last year).

Excellent AC1900 Wi-Fi performance; Robust and functional chassis design; Goog USB transfer performance; Powerful UI; OpenWRT support;

Hefty, blue design may put off some users; Doesn't support MU-MIMO; Pushes you towards Smart Wi-Fi login; No basic view for UI;