Reviewed May 2012 over at SmallNetBuilder.com.
There is both good and bad news for those itching to run out and buy a draft 11ac router. The good is that, when paired with its WLI-H4-D1300 partner, the WZR-D1800H can produce almost 450 Mbps of aggregate throughput when handling multiple clients. Even better, though, its that the pair can produce around 100 Mbps of usable throughput at my weakest signal test point for a single test client!
This is more bandwidth than I've ever seen available from any other 5 GHz wireless product and may even be capable of sustaining a trouble-free 1080p HD video stream. The catch, however, are the large and long throughput dropouts that I saw in many of my tests. So unless your HD streaming player has some decent buffering, you may still be out of luck! I will have to give HD streaming a shot in the coming weeks, after I clear out some of my review backlog.
The bad news is that you'll need to spend almost $400 to run the above experiment. And the more practical bad news is that the WZR-D1800H isn't a particularly good simultaneous dual-band three-stream N ("N900") router. If that is what you're looking for, you may be better off spending about the same price and picking up an ASUS RT-N66U."
Well, except now it will only cost you about 200 bones from woot.
As for the comparison against the RT-N66U, this offers about 2/3 the performance of the Asus. And the Asus goes regularly for $160.