My '97 LS KBB's at around $3000 even with 118,000 miles, so I'd say yes, this is a good deal if it is an LS in very good condition. The LS has aluminum wheels, 225-60-R16 tires, ABS standard, 6 way power driver's side seat (may have both) Higher governed top speed (due to speed rated tires) and comes standard with the full compliment of accesories that may or may not be found on the base model (power windows, locks, mirrors, cruise, tilt, etc.)
It sounds like that one is a base if it has wheels covers, I'll have to look at the link.
I just looked, it appears to have most of the goodies of the LS except the upgraded wheels/tires and maybe ABS, since they didn't mention it. My guess is it is a base model with a preferred options package. They say they have a Carfax report, just ask for a copy.
It looks like a very nice car.