To each their own. Oracle Cards are a dime a dozen, and it's always best to create your own. Have your own poetry or words of power to interpret. An accessory or add-on to your main form of Divination. What I like about The Rose Oracle is the packaging and quality. The cards have a nice feel, the art is dreamy/surreal, and the box is very tight and sturdy.
How you use them is up to you.