They also sucked. I had an LS-2000 and the images were noisy as hell and it couldn't scan negatives for shit. I sold it on eBay. It's incredible how overrated the Nikon scanners were.
In the end I found a new in-box Minolta Dimage Scan Elite 5400 II, pretty much the end of the line for film scanners. I haven't tried it yet!