I had it as a generalist daytime lens for walking around on my D300, and it's great for that. Sharpness is good, VR is excellent, and distortion can be corrected mostly fairly easily. I didn't find it hugely noticeable anyway. It's a little slow for anything other than daylight use unless you're using flash, and I wouldn't really use it for portraits. The great thing about it is that you can reel pretty much any shot you like into frame with the twist of your wrist without walking anywhere, which is great if you're a tourist somewhere and don't know what you're looking to photograph. It's pretty light and compact too, considering what a large range it has, but this is no doubt down to it's DX-ness, so the ideal solution to travelling light with a DSLR. Problems are that it has a big tendency to zoom creep, which is *very* annoying when you have it tripod mounted and trying to take shots in a downwards direction (still life shots etc) which will drive you bonkers. It's also not the best lens for bokeh. Things in the background look more like they're vibrating rapidly than nicely soft & fuzzy. I have my 105 f2.8 Micro or 50mm f1.4 for portraits & bokeh though, depending on how much space I have... The 18-200mm, perhaps unsurprisingly, is a bit of a jack-of-all-trades - the swiss army knife of lenses - OK at most things but outstanding at none. I'm selling mine to my father for his D80, because he's not a changing lenses kind of guy. I'm moving to a D700, so DX lenses won't be any good to me. They're going for around £400 on eBay right now, which is a pretty good deal.