My sweet cat, Donna, was pretty bored with every cat toy I'd gotten for her.  I am thrilled to have found this fun scratching board with ball because she loves it!  One thing I really love is that it's a toy and a scratching place combined into one.  She'll play and play with the balls, trying to get them out, and then scratch on the board in turn.  
  I can't personally speak for Donna but she really seems to like the circular nature of the inner part of this board.  When she bats at one of the balls it rings and rolls along the board's tunnel.  She'll repeat this over and over and the ball never gets stuck or comes to an end.  It just goes around and around.  Having a bell in each ball makes it extra fun.