Daughter really likes this "fortress". It was easy to set up and kept her entertained for hours. After using it for a while, I come back to the review. I wish the balls were included but ordering wasn't too difficult either. This is a great size for multiple children to play with and easy for ages 6 months to 5 years. I have to say that we fell apart a bit. A corner of the tent snapped and the tunnel wire popped out at one end. Don't worry, some scotch and we're back in business. Overall a great purchase as toys are meant to be played with and enjoyed.