Summary: If you're looking for a router to take you into the future, this is not it. Particularly if you're looking for IPV6 support on the Comcast network. IPV6 is very important in a modern router as the Internet is transitioning from the old IPV4 communications protocol to IPV6. The particular issue with this router is that it does not support the part of the specification known as IPV6-PD.
Summary: Worst router I've ever owned. After setting this router up 3 or 4 separate times, it would work for a few hours then drop most packets going across the internal network and coming into the wan interface. After going through years of college using Cisco devices in labs I had grown a trust to their products, choosing this over a cheaper and better reviewed tp-link VPN router based on my faith in the Cisco enterprise level equipment I had used previously.
Summary: I am very happy with the RV180 and would recommend it to anyone with a decent networking background. No need to be an expert. My company has purchased now 7 of these devices and we use them as an edge firewall and to interconnect 7 small offices via IPSEC VPN. We have 3 more we plan to convert this month. My office locations all have 30 Mbps cable internet and have no problem hitting that number through the RV180 with multiple VPNs up and running.
Summary: I use this router at many of my customers. Great for basic vlan configuration, multi wifi signal seperation, traditional routing, and general management. I rarely use the VPN feature, but have read some articles regarding minor issues with it.
Summary: I bought this for a small office to connect over VPN to the home office. Updated to latest firmware before installing. It was setup in bridge mode on DSL line and the ISP was little help in configuring it, but through trial and error I got it working. Same with the VPN setup, the interface is confusing but with a little knowledge and luck, I got it working. So far no complaints.
Cisco is still the best choice over bargain brands.
16 August 2014
Summary: These are dependable routers and give good throughput on VPN and using cable ISP modem. Upgrade firmware immediately. Lesson: If you have a static IP then it is likely that the MAC address of your old router is what is registered with your ISP. In config, enter the old device MAC address and you can start off running more quickly (took me 2 hours to discover). QOS easy to configure.
Summary: Had multiple issues where LAN ports would stop working. Reboots, Factory Resets, etc all did not help consistently. Tried 3 different Firmwares, no help. Others online appear to have had similar issues. When it was working, anything other than a direct connection caused speeds to cut in half. Connecting to my Cisco switches should have worked fine, but they didn't.