Easy as hell...takes 40 minutes in your driveway. Make sure you have a socket set, with at least a 3 inch extension. Its a MAJOR pain to get the stock shifter off. I used a hammer and pried it off. Make sure to use RTV when installing the new shifter. Its as simple as unbolting 8 bolts...and rebolting.
when i got my aftermarket i can shifts were just as fast. It's just good to have a more solid feeling to a shifter than some wet noodle feeling the stocker has..