I have one, got it when I got the D200, it was the only lens I had for a while. Not real fast at f3.5 so indoors a flash is usually required. Great range, pretty wide at 18 for my indoor real estate shots, it is the widest lens I own, wishing for a 12-24. I have used it for some portrait shots before I got the 50 and it worked well. Overall I find it a very useful lens. They do seem to loosen up a little and slide out on their own when carrying it around pointed down. I'll post up some portrait shots that I think came out pretty well.