...any way if any body don't like don't buy it there is no need for complaining or whining...
This is, precisely, a place to actually discuss and disagree about opinions, ideas and the decisions behind Canon's new products. Also, many people eagerly await new releases, precisely, because they usually address key downsides or shortcomings of previous products.
That is why several people are complaining about this product (with good reason, IMHO). Most everyone was expecting that, given the shorter range and identical luminosity of the 24-105, this would be significantly better in IQ to justify both the release of a newer product with shorter range and its at-release higher (MUCH! higher) price tag.
According to initial pre-views, it appears this lens does NOT fill those expectations. Furthermore, Canon has, as of late, given many mind-baffling products: the very-expensive, very-slow but ISed 24, 28 and 35. On the other hand, it has delayed what seems like forever the products people actually where looking for, like the 200-400, so many loyal Canon customers are really NOT happy with the trends of late.
I will repeat myself here, but I cannot see who would be seriously (and massively at that) interested in this lens. Of course there are people here and there, but I can't see lots of people flocking to this lens if you can have the 24-105 for half the price! Even if the IQ of the 24-70 is a bit better (which still remains to be seen and I'm willing to give it the benefit of the doubt), paying twice as much for half the range and identical luminosity only for the macro option is kind of absurd.
I follow several sites and forums dedicated to photography and this is a general trend. Incidentally, those other lenses I mentioned 24 f2.8, 28 f2.8 and 35 f2 have received equally bellow-expectation marks, and places like POTN with over 100K members, do not show anyone using those $800 lenses. I feel this will be the same for this ultra expensive de-buffed 24-105
. So Canon either missed the specs, or missed the price point. The combo of both makes this lens really not very appealing to anyone other than the people that really need to have the latest for no other reason than being new.