I too am a 20 year IT Veteran (VCP, MCSE, 5 Exchange Certs, Citrix CNE, Cisco CNA, 6 Sig. Lean), plus I have 10 years managing McAfee Products in corporate environments.
I find your comments short-sighted and terribly defensive (in denial). Society has gone E-everything in the past 5 years, and the quality of harddrives has sunk to new lows, where 3 month drive failures are common. Therefore shared devices and backups are essential to retaining your life these days. What is the easiet way to backup a device regularly? It is a network, and your product is stopping that option built into every router sold in the retail market.
None of McAfee's Corporate products are as flaky as this AV/Firewall. Sorry to point that out, but my neighbor has chosen poorly and selected your product for one of their "Vista" PC's and it is a nightmare. I have to go over there and fix it every 3 months. This product is NOT something I would recommend to my enemies!
BTW: My house has 3 iPads, 2 desktops, 2 laptops, Home Theatre, Allshare, 3 Smartphones, 3 iTouch, 3 Wireless AP's and 3 TV's - that is 21 connected devices that share files daily. There is no way I'm going with McAfee, because it is a pain to manage and it is a resource pig too.