I changed mine yesterday as well and everything went fairly smooth. Both allen keys are different sizes. make sure you have those on hand first. I don't have the sizes off the top of my head but I will check the next time I am in the garage.

Couper93 is right. I used about 8.75L of oil because the new filter will soak in quite a bit and yes, a big oil container is necessary as it spits out...FAST!