I've had one in my main beam for a while and used it daily down dark unlite back roads/lanes - It's very good, I've not been tempted to go LED for the dipped beam because I find that and the fogs as standard work well - you just need to adjust them both up as high as you dare
I test rode the new Honda AT with its LED headlights in the dark and the lights on that are very impressive, riding home on the GS with its LED main you could see that it did not have the engineered/well designed cut of and spread of the Honda but I did not feel the I was missing much. In fact it confirmed what a great UG this is.
I'd be interested to hear what it's like in th dip, my thoughts are it will provide too much bright white light in the foreground and distract you from looking into the distance