Pretty easy on this car.

Remove the hoses from the outside. (hassle)
Remove trim in front of center console. (couple of screws)
Remove the floor vent at the bottom of the duct. (three screws)
Remove the bottom section of duct, snaps on so dont break the tabs.
Pull it out and open it up, heater core is inside.

"Those who cannot remember the past are condemned to repeat it" -George Santayana