Needed a cheap wifi router for a new FTTP connection next month and this is about as cheap as it gets for an AC2400 router. I'm sure it's not as good as an Asus RT-AC68U - but it's half the price!
Reviews are mixed, it's apparently tragic at file serving (only USB 2.0 ports) but general web use should be more than acceptable.
You can also mesh a maximum 2 of them together to cover a larger area.
Comprehensive review here
Available from TreasurePC's ebay as well
Found detailed specs from here, didn't want to put a wall of text in the OP though:
Wireless Connectivity
* Quad-stream AC2400 Wave-2 WiFi
* Simultaneous dual-band WiFi (2.4GHz and 5GHz)
* Band steering automatically selects 2.4GHz or 5GHz for best performance
* Continuous 2.4GHz and 5GHz scanners allow operation in restricted 5GHz ranges (UNII-2A, UNII-2C, U-NII-2e) for consistently fast and reliable performance
* Bluetooth® 4.1 Low-Energy: Supporting smartphones, tablets and IoT devices
Advanced Radios
* 5GHz 4x4 high-powered agile wide-band 802.11a/n/ac Wave-2
* 2.4GHz 3x3 high-powered 802.11b/g/n
* Nine (9) large internal antenna with discrete high-power amplifiers to provide coverage to large homes up to 3,000 ft2 / 280 m2
MU-MIMO
* Multi-User MIMO for simultaneous streaming and gaming on multiple devices
Beamforming
* Explicit transmit beamforming for improved range and coverage
Ports
* Five (5) Gigabit Ethernet Ports - 4 LAN, 1 WAN
* Two USB 2.0 Ports
Mesh 2.0
* For larger multi-story homes greater than 3,000 ft2 / 280 m2
* Enterprise-grade Mesh with dynamic layer-2 routing
* Near Zero-Interference, Auto-Detect, Easy one-touch setup
* Wireless and wired backhaul available
Security
* Continuous Intrusion Monitoring and remote alerts to smartphone
* Ultra-secure Web GUI interface with proprietary 2-factor authentication
* VPN for secure remote access
* WiFi Protected Access® (WPA/WPA2—PSK)
* Parental Controls to manage web filtering and accessibility
* Geo-fenced Guest access with rolling code passwords and easy smartphone setup and authentication
* Double firewall protection (SPI and NAT)
Additional
* QoS prioritizes network traffic by application and device
* DLNA® server to find and play your media on TVs and game consoles