I posted this over three months ago and it is back again at a good price. I loved using the AsusWRT- Merlin UI with my R7000 and whilst I have not had this router I can appreciate how relatively simple that UI was when I used it as a VPN client, with policy based routing etc.
Although if you have a fast connection then a x86 box with pfsense, which has AES instruction support might be a better choice for your VPN needs.
ASUS RT-AC3200 Tri-Band Wireless Gigabit Router
802.11ac tri-band Wi-Fi router boosts speeds up to 3200Mbps for low-latency online gaming, smooth 4K UHD video playback and extremely fast file-sharing.
Tri-Band Smart Connect automatically selects the fastest of the three available frequency bands for each device, based on the device's speed, signal strength and how busy each band is.
High performance antennas with AiRadar universal beamforming for unrivaled Wi-Fi range
AiProtection with Trend MicroTM for triple-strength network security, plus robust Parental Controls and privacy protection
USB 3.0 port for 10X-faster data transfers than USB 2.0; also includes one USB 2.0 port
Intuitive ASUS Router App lets you control your network anywhere, without needing to boot up a PC
Link to the deal I posted for the Asus RT-AC87U router....http://www.hotukdeals.com/deals/asus-rt-ac87u-ac2400-dual-band-gigabit-wireless-router-2691398#post30896542