I’m UK and I’ve got 5 of the E330 pro wired cameras, had them a month or so now. Replaced some old Samsung wired cameras so the power was already in place pretty much using existing cables.
Happy so far, personally would rather have a constant powered, constant recorded system but obviously using existing wiring makes this simpler. Was also pleased that the mounting had identical screw holes so no extra drilling 
Quality is excellent. Sensitivity a bit too good as triggers alerts every time the wind blows bushes in the garden. One minor problem with a camera continually disconnecting after a day or so, but waiting on a warranty replacement