I couldn't put my pre-order in fast enough. The promise of having quality as high as has been reported across that zoom range will be truly invaluable. As an event and wedding shooter, I use the 24-70 far more than any other lens and it's not even close to the sharpness of any of my other lenses (zooms and primes). Every time I end up shooting portraits with it, I am terribly disappointed -- wedding portraits can get rather wide and negate the use of my 70-200. The only prime I really use is the 85 f/12.L (also not wide enough) and I was thinking about getting either a 35 or 24mm L prime but am now hoping the new version of the 24-70 is good enough that I won't need them. I may still get the 24mm TS, but that' more for the TS function and not as a portrait lens (yes, I know it's the sharpest of the 24mm's, so it will likely get double duty).