Not as popular as the 'flat' Play Circuit
I had tremendous success with the flat Play Circuit so thought this would give my 1 year old Oriental another toy to play with. He has a go with it but his preferred method of playing with the flat version is to wait in one place, bat the ball and wait for it to come back to him, then do it again and rinse repeat. As it has dips and rises he can't play with the Speed Circuit in the same way because the ball will stop in one of the dips, and so he loses interest. This is not a fault of the toy, it's just because of the way he prefers to play!