I just got my 70-200mm the other day and I am in love with it... Its such a pleasure to use. The AF, the colors, the IQ... Incredible. Well spent money!
Here is a pic I just grabbed out in the garden (until I really try it out this weekend). I mean, look at that 100% crop, the detail this lens picks up! And although my example is not wide open at f/4, the detail is just as incredible. I was just testing this lens all over its range to see how it reacts. But I liked this shot...
EXIF:
f/7.1, 1/320s, ISO 100, @135mm.