I've had the IS250 for 2 months now and it's everything I'd hoped. Great looks, terrific fit and finish on the interior--which sold me over the BMW 3 and even the Audi A4. As others have noted, the ride's not as sporty as some others but I'm not on twisting turning road all that much anyway, whereas the comfort and style are always noted and appreciated. This is my 3rd Lexus (RX & GS) and have loved them all.
Comfort, fit, finish. Nav and blue tooth are excellent. Gas mileage also a pleasant surprise at 27+ overall.
Rear seat is tight. Rear visibility a little sub par