Excerpt: I had the other 55-250 without the STM, what a huge difference this lens makes.... Pictures are crystal clear and I have no complaints whatsoever about it.... there is no down side to this lens... I shoot wildlife and Surfers and I use a Canon 7d Mark II and this photos come out fantastic.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Nice Bokeh, Rugged, Strong Construction
Excerpt: I was interested in the STM lenses strictly for a video. They wake up and can focus when the camera is on (they're electronic). If you want to have manual focus full time (camera on or off), Get the USM lenses.
Pros: Consistent Output, Fast / accurate auto-focus, Lightweight, Nice Bokeh
Summary: Excellent purchase! The lens works wonderfully, the flash works great and all the other parts of this package are as advertised. The cleaning kit will come in handy and the extra filters are good to have. Packed very well and quick delivery.
Summary: I love having this zoom lens. I am able to stay back and take pictures from further away if clients aren't very comfortable with having pictures taken, or if they're having trouble acting natural.