Summary: Excellent performance but, as with many other reviewers here and elsewhere, the wireless card has failed after two years. I thought the high price would buy me a better quality product, but that has not been the case.
Summary: I bought this router based on the number of high reviews and to be honest I had high hopes for this unit which was bought to replace an ageing (but still working) Linksys. The router was setup okay although there were initial frustrations in getting the unit to recognise the broadband on the line.
Summary: I had a Billion router before, but upgraded to this 7800N. My ping times have dropped from 65ms to 15ms, my synch speed has improved from 4MB to 6.5MB (I'm 4.5km from the exchange) and I have not had a single reboot in the 3 weeks since installing it. It's rock solid at these speeds, 24/7 uptime so far. My BT line now reports a maximum line speed of 7000K where as it has always been 4000k before.
Summary: I bought this to get over the problem of the standard ISP wireless router allocating too much bandwidth to downloads and not enough to gamers. Setting it up with 2 ethernet connections and up to 6 wireless devices was a doddle. It did the trick straight away. Even before setting up the QoS the gamers on CoD got much better connections and better signal throughout the house. After 4 days the ethernet connections failed. Wireless connections carried on working OK.