Personally, I like them. Enough so that I bought two and plan on getting at least one more.
IMO, they are exceptional bargains if you are looking for a position gun. The first one I got had a very light cut mark ~4 inches long on the butt but otherwise in ecellent shape. At first, it did not group well (~0.75" at 50 yds, which is not as good as the groups I get with some of my other .22 lrs) and was about to relegate it as a range gun for practicing position with it. On one last try, I fed it RWS R50 and it is shooting in the 0.5s no problem. Set that one up with a scope and occasionally use if for benching as well as position.
As well as the first one was shooting, I wanted another that was strictly for position with iron sights and bought another. ~20% (it was said by the guy behind the back counter of the North store) to not have any blemishes at all and it is one of these that I got. It does not like R50 as much as the first but does exceptionally well with Wolf Match Extra (other gun did not like ME). Using the supplied sights from the first gun (made in Australia), I slapped on an adjustable globe up front and an adjustable iris with polarizer at the rear (both from Anschütz). It is my position gun for now.
For the price you pay and the accuracy/precision you get, IMO, the Kimber 82G is a bargain. Both the ones I have will outshoot the Izmash Biathlon Basic 7-2 and Biathlon 7-4 I have (for now as I haven't done thorough ammo tests on them yet - only Wolf MT and ME, Fed 711, Lapua Midas M, RWS R50). They do as well as my CZ .22s (Varmint, American, Training Rifle, Ultra Lux, Scout) but then again, they are different classes.
The 82Gs I got did not display any rust. They did have some redish foreign material on them that cleaned off easily but did not leave any erosion on the rifle's surfaces.