I bought a Silent Partner Ultra Lite last week and I have played with it a few times. And I have also played against the wall twice. I found out that the ball machine is nice but playing against the wall is also a very good training aid for grooving the strokes. The ball machine is not necessarily better than the wall. They are just two different training aids that target different aspects. I can't really put my feeling into words yet. I will keep using these two training aids simultaneously.