Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Great 1st L Lens
Review: This was my first L lens. The build quality was great and the image quality superb. I since upgraded to the 70-200 f/2.8 IS Mk II, which has a wider aperture and includes IS; however, this lens is much lighter than the 2.8 so you can carry it around without getting tired as fast. As for lack of IS, it depends on what you're shooting. For outdoor sports you probably won't need it.
