In my opinion, this car is a victim of Ford's radical styling. It is reliable, strong and seems to be fairly well put together. Critics of the car don't like the oval styling and I think that leads them to overlook the car's good qualities.
The 24v 3.0 v6 Duratec is, in my opinion, one of the most underrated engines that Ford has built recently. It is strong with 200hp, runs very smoothly and seems to be very reliable. The Vulcan engine in the GL is the source of much of the bad reputation for the Taurus. If you stay away from that engine, I think you'll be pleased.
Interior comfort is good and the cabin is nice and spacious. I am tall (6'2") and the car has plenty of headroom and legroom. In addition, the back seat is adequately comfortable (more so than other cars in this class).
The oval "football" control center is admittedly confusing at first, but once you learn it it seems to be well laid out and easy to use.
The automatic climate control feature works well.
The JBL sound system sounds very nice.
Body and paint quality has been excellent. I have no rust spots and the paint still has a high shine to it. Ford definitely has the Japanese models beat in this department.
Overall, this isn't a flashy car, but represents a good, solid sedan. Honestly, I believe if this car had a Japanese nameplate instead of Ford, it would be more highly regarded. With the prices in the used market, it can be a good value.