Okay to use custom Amazon Buy Now button?

Can anyone confirm if they have every ran into issues with integrating customer Amazon Buy Now buttons that contain "Amazon" in the text? I know for sure that altering the logo in any way is a no-no and it is advised to use the supplied Buy Now button images that they supply, but I want the button to say "View Details" instead of "Buy Now" as seen below:



I actually tried researching the issue and asking amazon support for help but the answers are mixed.

I think the best way to know is from past experiences. Has anyone had any issues with this before?