Terrific for most flying games because its ultrasensitive to motion. If you try to play Descent 3, have a motion sickness bag handy. Doesn't come with other games mapped out like Gravis' products. This one is right for my hands I enjoy fleing Starwars RogueSquadrom. Directional pad is responsive and the eight progammable keys are within easy reach for most people.
Software is very good and easy to add new game profiles to.
However the sidewinder freestyle pro is touted as allowing you to control your games by simply moving the controller in a specific direction and I've found that this only works well with specific games. Tilting the controller response shines in motorcycle games and is fair in driving games, but in first person shooter games it is just not responsive enough to play these games effectively. Moreover, flying sims take a considerable amount of practice before you get comfortable enough to use this controller effecitively. For flying sims a stick controller is a much better option. Overall a good product with serial or USB support, nice software, but I believe its functionality is too limited to make it your only game controller.