I have done probably a dozen CV shaft jobs on my Hondas over the years. All of them were manual transmissions however. On manual transmissions, you will need to drain all of the motor oil from the tranny prior to removing the axles, or you will have a giant mess when you pull the axles. I would expect an automatic is similar, check your maintenance manual.
As for your expectation of it being "easy"... Well its easier than a tranny removal, but if this is your first time digging into it, I would expect a half a day or so, maybe longer if you run into any headaches, as I always seem to. It really isn't that complicated, just tends to always take me longer than I expect. If I can be of any assistance, let me know.
Some headaches you may encounter:
-Stubborn axles nuts, break them loose with the car on the ground, have a big breaker bar and a partner inside the car standing on the brakes. Although overkill, I bought myself a 3/4" drive breaker bar solely for these nuts and crankshaft bolts. I broke a 1/2" drive breaker once, never again. Ouch is all I can say.
-Lower ball joints not separating, I don't have the right puller, so a few good whacks to the side of the balljoint (end of lower control arm) after loosening the castle nut usually does the trick. Be careful not to damage the boot for the ball joint while you are down there.
-Pulling the outer joint apart while wrestling the new axles into place. NEVER pull on the outboard side of the outer joint. Pull on the axle shaft itself. If it does separate, good luck getting it back together without removing the boot. Boot removal is definitely a huge mess and a job within itself. AVOID THIS AT ALL COSTS.
-If at all posible, take the old axles with you when you buy the new ones. Make sure they match exactly. Don't give the shop your old ones until the new ones are installed and working. Most places will charge you a core charge, and will refund it upon return of your old axles.
Good luck!
Dave