I purchased my GS300 with 92,000 miles on it 6 months ago. So far I am very happy. Car is very nice, has great features, and has been problem free. When I purchased there was some rattling coming from near the right front tire. Took to mechanic, replaced front strut mounts, and rattle was taken care of. Cost me $350, but now I enjoy a smooth quiet ride. Average 22mpg, and get much better on long freeway drives. Will upgrade to LS430 in a few years.
Seat warmers. Dual air controls. Navigation. Super smooth, sexy, ride.
Subwoofer is known to have problems, and is hard to access behind back seat. If you think your woofer is blown, it probably isn't. The adhesive used on the cone of the speaker is no good. I read up on the Lexus forums, took out my back seat, hot glued around perimeter of cone on speaker, and sub hits just fine now.