Has anyone bought this yet? I test-drove a Premium package equipped model today and it was fantastic. I am interested in the air suspension but am told that they're are relatively rare to have just sitting on the lot--could be a few month wait to receive a special-order one. I don't mind the wait for the car I'm sure I want to buy, but I'd like to get a test drive of the optional suspension before commiting to it on a special order. Anyone compare them? Recommendations? I've test-driven the FX35, MDX, Murano, Aviator, etc and I'm convinced the RX 330 is the best of the breed. Thanks. --BT