Just had another look and there are some good pics among them, should give you a real insight into what this lens can do . You can even select images taken with this lens on different cameras.
I have the lens myself but it has been a busy year for me and not done much with it, I have sold the 30D to my son and expect my 40D to arrive next week and hopefully will find time to have some fun.
It is a great walkabout lens and feels really good.