Logitech WiLife camera fails often and product support is horrendous, Internet

I purchased a WiLife security system in January 2009, with one outdoor WiLife camera.  It worked beautifully -- for three months.  Then it started cutting out with increasing frequency.  After multiple trouble tickets and calls, Logitech finally agreed to replace my first camera.  But then the same thing started happening with my second camera almost right away and, after multiple trouble tickets and calls, Logitech replaced THAT one too.

Finally -- camera 3 -- same problem -- and now Logitech claims it's my home's electrical circuits to blame!  Why that wasn't an issue the previous two times is a mystery.  Why those same circuits support a wide range of electronics but not a simple external webcam is a mystery.  Why the first camera worked just fine on the same circuit for three months is a mystery.

I asked for a full refund of my system and the $70+ I paid for a "access my camera anywhere while I'm traveling" service contact that was useless since my camera was "down" so much.  That request was refused.  I exchanged "Tweets" on Twitter with Logitech rep, @logitech," who kept saying for weeks that someone was going to get back to me re my appeal for a refund -- and no one did.  Finally, @logitech claimed that my issue had already been resolved.  No, it hasn't!

I'm particularly frustrated because I've been a fan and purchaser of multiple other Logitech products, to include several webcams, mice, etc.  And I told Logitech that in my correspondence.  To no avail.

To Logitech, in my opinion, customer service is an oxymoron.