I bought an Outback 3500w 24volt (model VFX3524) about a month and a half ago, and I love it. No more buzzing in electronics and the like... runs silently...not that that matters in my case as its not in the house... except, I suppose, wehn the fan comes on.. but mine has never gotten hot enough for that to happen...
My problem was that I died last Monday. I suspected a near lightning strike... I sent it back to Outback, and they said the problems with it were indeed very consistant with my suspicion. Obviously I wouldn't expect such troubles to be covered under warrenty.
Apparently one of the control boards in tehre was damaged, but repairable. They did not charge me for that. The computer was also completely fried beyond repair, and they had me pay for that ($200). But, they didn't charge me anything for any labour, and they didn't charge me for return shipping via ground.
Overall, I'm more than pleased with their service... both in what they charged me for, and the timely matter in which they got it back together.
Suffice to say, wehn I get it back in, its gonna be such that I can completely isolate it from both the AC and DC sides, and I will install a remote switch so I can turn it off.
-Matt