The first thing I noticed was that it doesn't zoom all the way out to 200mm. There is almost no difference between 135mm and 200mm. I compared the focal length between it's 200 and my Tamron 70-300's 200mm, and there was a big difference. Still worth the money as a walk around lens.
Compact; Internal Focusing; Zoom Lock
Not 18-200mm (more like 18-135mm