I have bought it for use with Lightroom, I am a professional photographer and for high volume work such as weddings and baptisms it does a very good job if you set it up to your liking, the price is a bit steep but it is the only one of its kind. Personally, I would like it to be somewhere around 180 max with shipping. It is also very good that you can use it in many other programs such as final cut, photoshop, premiere. Finally, it does not completely replace the mouse but it can definitely replace the keyboard.