Lexus listened to the reviews of the 2006 model and addressed the concerns in 07 - a quick 303 hp V6; good brake feel and response; the ability to turn off the stability control. I have not enjoyed driving this much since my 1994 BMW 540! I have owned the 2006 530i, and this Lexus is a much better driving experience than that car was. I would like just a bit more headroom (I am 6 feet tall), but that is my only complaint. I am thoroughly enjoying this car - highly recommended for a test drive.
Speed plus decent fuel economy; sporty feel and handling; absence of an "iDrive" or "MMI"; AWD capability; nice NAV system.
I would re-style the fastback rear end and give the car a better cut from the roof to the trunk deck, and I would add an inch of head room, but these are changes that will have to wait for the next generation GS.