It's not difficult with the right facilities, there is a drain plug and a refill point with dipstick.
You should only use the Honda fluid called I believe, CVT-F, and drain, refill, run the car selecting all the functions and then drain and refill again. You will need twice the amount of oil specified for the capacity of the gearbox.
Do a search on here, there is loads of info on CVT oil changing.
Vic.