I used an external trackpad for a while before going to a vertical mouse, then trackballs. I liked the external trackpad better than the fixed position of a lap

I used an external trackpad for a while before going to a vertical mouse, then trackballs. I liked the external trackpad better than the fixed position of a laptop but that's the best thing I can say about it — it didn't alleviate wrist pain and it didn't add much flexibility to how or where I work. When I absolutely need gestures, the laptop's trackpad is still there. As for accuracy, after using a Logitech trackball for about 6 months, I'd replaced my gaming mouse with it for FPS games. The only thing that had a significant learning curve was precise placement of click-and-drag operations, and that was mostly training myself to let my thumb off the ball before releasing the click.