I've had the Audi A8 and the Mercedes E-Class and by far I must say that the new STS is by far the best to drive and it handles on a dime. I was merely impressed to see that GM has gotten a vechicle to play with those that others claim to be the best in this class.
I like the Bluetooth, the 5.1 Bose and the keyless technology.
This vehicle is in one word awesome. You have to drive one to believe the over all performance, comfort and whatever you would ever dream of having in a car. I have owned a few Cadillac's, they were all wonderful cars but nothing like this one. Competitors can't touch this one. I love my STS.
Trying to program the memory features was a real chore. It took 2 dealer techs 2 hours to get the job done. The old Seville came with VHS instructional tape and a handy card. This new STS is not user friendly in that respect. The glove compartment is next to useless, being so shallow and the return of standard cigarette lighters and ash trays is not a welcome addition. The buyer gets more "toys" than he can keep track of, so eventually forgets all but the most used features. The tires and brakes could be a little more high-performance but are only adequate as they come from the factory. The coffee cup holders have only one purpose: to hold coffee cups.
Peppy performance and pretty good stopping ability. Exterior design is not a copy of every other car on the road, but unique and imaginative. RWD is a welcome feature. Stock interior, which is never featured in the ads, is pretty pedestrian without the wood trimmed steering wheel, but acceptable
Get rid of the ashtrays. Bring back the handy holder between the sunvisor and roof to clip stuff with since there's precious few places to put extra CDs, notebooks and miscellaneous need-to-have stuff. On the outside, invent paint that won't swirl and is easy to clean bird droppings.
Fun Car! The seats a little hard. Two faults: trunk very limited and glove box stinks. Missing some things that we were used to: auto trunk close; hidden accesory plug for radar detect or phone that closes down with ignition. Overload on computorized settings. (my wife is still scared to touch )