Once you've had Xenon you won't want to go back.
Even on dipped beam they throw out more light, it's wider and whiter than halogens. On main beam the amount of light is amazing, having flashed a colleague once with full xenon when he was passing the comment the next day was "What the f&*^ have you got on the front of your car, a pair of searchlights?"
You'll probably find yourself dipping the headlights a few times because you think there is another car coming, but really it is your
headlights lighting the road that brightly that far ahead.