I just purchased by IS 250 two days ago and I love it. I traded an 07 Acura TL, but I drove the Mercedes C300, Audi A4 and VW Fahrenheit GLI. Glad I chose the IS 250 even though the horsepower is lacking and doesn't compare to the TL I had. I got an excellent deal on this car and the base model is loaded with everything I needed. I did get one with HID, 18" tires and upgraded rims and a few other items. Drive it and you'll want one for sure!
Push button start, HID with auto level, exterior styling.
More horsepower, larger back seat, blue tooth without having to purchase navigation.