Just thought I would reply in here to give a "state of address".
The thing has been ROCK SOLID.
Just sits there doing its thing, not a single crash, not had to do ANYTHING with it, it just works.
Ultra reliable and is infinitely more reliable than the Virgin hub it was built to replace.
For anyone else going the same route, one change I did make, a quad NIC is not needed. A GOOD switch is all that is needed. A dual Intel NIC is all that is required for the pFsense appliance. WAN in and LAN out to the switch. The switch does everything else. I moved the Quad NIC into my FreeNAS build
Currently connected devices through router are:
Virgin Media @ 370Mbps
5 x Desktops
2 x Virgin Media STB's
2 x Polycom 335 VOIP phones
1 x Wifi Router isolated from network to serve Wifi printer only.
Not a single issue.
My own summation is that where "off the shelf" routers start to crumble is the fact they are essentially two devices, a router and switch and when you try to merge things like this and knock them out for peanuts like most consumer units are, shortcuts are taken and they struggle to do both EXCEPTIONALLY well at the same time.
Comparing the PfSense appliance to an "off the shelf" Premium router is a none contest.
The PfSense appliance is rock solid and the relatively cheap TP-Link switches I am using are also rock solid.
LAN traffic performance is somehow much better than when using the "Super" hub.
Regarding setting up PfSense, it is easy if you just want a solid router. At worse, nothing common sense or a quick google will not shed light on either way. The beauty is, you discover all the cool things it can do and you actually want to play more and more and learn a little in the process. Nothing enthusiasts/hobbyists from these parts should have problems with.
PfSense, big thumbs up, glad I followed it through.