Put it this way, if you can drive a VX220 in the wet....you can drive the zed.
I am still get used to it..... I moved from a FWD 110BHP golf to a ~300bhp RWD zed. I have a little experience tracking a caterham, S2 elise and have driven a VX220 too, but the zed is quite heavy and planted.
I had a moment yesterday on a roundabout at 35mph in the really bad rain and bad road surface when I felt the back end start to come out....the TC kicked in and straightened it up.
I find the zed very to bring back even if you need to correct the back end