I have owned an '04 LS430 with the Sport Suspension for about a week. I also have a BMW330Ci, a Porsche Boxster and an M-B ML320. Previously, I've owned a couple of 5-Series BMWs. To my taste, the Lexus still feels heavy and somewhat cumbersome around tight turns, compared to the 3-Series and 5-Series BMWs. But I like it better than the E320, E500 Sport and XJ8 that I also drove. I would have liked to buy another BMW, but the current models are just too ugly, not to mention the iDrive stuff. To me, the Lexus is a great compromise between a luxurious ride and decent handling (just as long as you remember to slow down for the tight corners). The ride certainly is not too rough! My only real complaint is that the Sport Suspension option dictates all kinds of other option choices, including colors. For example, I wanted burgundy with a black interior--no can do with the Sport Suspension. So I have black/black. And you can't get certain options (like the rear-seat luxury package) while having to take others (such as SmartAccess or whatever it's called, which may soon get on my nerves).
