I'm glad Roxie likes her bed- we got it for our previous Rott, Tink, when the arthritis hit bad. It's a great bed, good thing it is because it cost us like 300$! But it's made for the biggest of the big dogs, so it holds up well.
We didn't let Roxie have it for the first while she was here- we bought her a crate pad instead, so she'd have something soft to lay on. I put all of her blankets on there and she proceeded to poop and pee on the blankets and her bed. After that she got the full bed and to date has not pooped or peed on it.