I absolutely love my f700BT. Except for the fact that it lags a bit, and only a bit! Also i have my iphone 3G hooked up through aux. apparently pioneer's update didnt fix the usb problem. if you're unaware, the iphone 3g does NOT work via usb with the pioneer f series. i tried everything, even changing AV1 to iPod. Anyways i love this unit had it for about a week, installed it myelf and have nothing bad to say about it. I dont like sirius's electronic music variety so I use XM; and let me tell you the XM interface is sweet!