"Cobra" Series 12vdc to 120vac Inverters

Hi,

Anyone have any experience with this series of inverters? I have heard various things about them. The ones i might be interested are the 800 watt, 1000 watt, and 1500 watt models, nothing lower and nothing higher rated.
I've heard various things about them.

They look OK but make sure whatever you're powering will be fine with the stepped square wave type output.