The LX4 is very nice to drive, the LX6 feels a touch over-powered though. With the 4 if you're straight you're safe, with the 6 even once you've straightened up after a slow corner, you still have to use part throttle or you'll be fighting for a straight line.
I've no problems controlling the oversteer once it happen, however I still agree the cars feel quite edgy. But then they're known to be quite darty IRL anyway, so I've complaints with that really.