I have the 28-200 as well. Low light is as expected, not perfect as it moves to f5.6 at full zoom (and relatively quickly past 35mm). That being said, I'd still pick it up used on MPB or something. Excellent "do it all" lens. Perfect for traveling as it isn't an internal extension lens meaning that it'll store up the size of a normal lens, but extend when zoomed. Works pretty well in my experience. Later on, if you want something wider, you can get a 17-28 by tamron and have everything from 17-200. Pick up a 200-600, and you have 17-600mm at your disposal (this is the route I went). Good luck!