Summary: I bought this lens used. It was described as a used lens but in very good working order. The seller described it correctly and I have used it quite a lot since I bought it. It is a very good lens. I would buy from this seller again.
Summary: Before I bought this lens I knew nothing other than the reviews at Fred Miranda's very useful site. The reviews were good so I bought it. That was over 5 years ago and boy, this lens has delivered. Fast focus and amzing detail, contrast and color. I am a pro and I challenge myself with prime (fixed focal) lenses only. This is the only zoom that I have owned since moving to digital in 2005.
Summary: This is a multi-purpose lens, perfect for general shooting, weddings, vacations, etc. I've enjoyed the quality and ease of use. You cannot go wrong with this lens, so long as you don't mind a bit of weight. Women may not be crazy about it because of that. Otherwise, no issues.