Editors' note: The Asus RT-AC3100 has two minors differences from the recently reviewed RT-AC88U. It has only four LAN ports (the RT-AC88U has eight), and it comes in black (the RT-AC88U has red styling). Other than that, the two routers are the same. That said, if you don't have use for the extra LAN ports, the RT-AC3100 will deliver exactly the same performance as the RT-AC88U.
For more on the performance and features of the RT-AC3100, check out the full review of the RT-AC88U.