OK so I'm in the market for a new receiver and have been eying the F90BT. But some of the reviews I've read have made me doubt the product. First off, how is the response time with a backup camera? Also, do the GPS maps have to be downloaded? As far as bootup goes I know it can be slow but I've heard it's one of the slowest. How is the bluetooth link? I really like the way this head unit looks but I also like the Kenwood DNX 7120. Thanks to all!

 

-Jeff