We adopted that girl and since then learned she's a GP mix. What did we sign up for?

We adopted this beautiful girl 3mo ago at the shelter. They had no idea what breed mix she was so we got a DNA test. Turns out, she's 40% Great Pyrenees, 23% Rottweiler and a bunch of other breeds. She's a year old, 42lbs, super sweet and a real goofball with a passion for barking and chewing. She definitely has some GP in her. What did we sign up for?