I have since. I can tell you now i have pretty well established ears, ofcourse not as good yours as you have way more experience. But the whole family has a hi-fi set, new and old, we've got about 5 sets of PC speakers and i've had alot of headphones and am currently auditiong some Monitors as you know for my room. My point is i know that it's louder, but i do think it is more accurate. I find the high end better, again, it may not be technically better - but i prefer the sound it makes better.
As i said erlier in the thread though, i did very little music listening, mainly game testing.