I really like the '04 and '06 better than the '05. To me, the 05 was a little too fruited, not enough breadiness, and I agree about the lack of complexity. It is still a beautiful wine, and I do like the elegance and grace of the bubbles, they seemed more refined. the 06 is a great bottle, I think it is my preferred vintage in the last decade. Here in the US, we won't get to even sniff a bottle of 09 for a couple of years. Thats AWESOME that you have already had it!! Oh, and the Gimonnet Special Club I told you about was a 2012 Grand Cru, it was fantastic, but I would like to try it again in several years, I also like some age in my bubbles. :)