Not at all, but the more I look at pictures taken with it, the less I like what it does *in some situations*. If the OOF areas were smoother then it would be pretty much perfect in every way, and a must-have in the kit bag.
It's really good for a walk-about zoom, and is good for most situations one might come across. The thing is that when I WANT a smooth OOF background then it can't deliver, even with a butt-load of smoothing in post:
Lord Blandford's Pheasant by
Toni Ertl, on Flickr
Where other designs of lenses can:
Dance on the wind by
Toni Ertl, on Flickr
It's more than
just aperture that makes a difference. What I'd like is a lens that will let me get portraits where I can do that smooth background without having to post-process the crunchiness out of the image.