Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Decent quality, average construction

I bought this very popular lens after considering other brands' alternatives and reading the reviews. This is my primary walkaround lens that I use when I don't want to carry heavy or expensive gear and need pictures that are "good enough" for the purpose, which is what this lens produces. For situations where image quality is of high priority, I rent L lenses.Pros - light, very versatile, inexpensive relative to alternativesCons - front-focusing and construction. After less than a year, the front element has begun to wobble and I'm sending the unit for repairs.