If you already have Topaz Sharpen AI, Topaz Denoise AI and Topaz Gigapixel then you can download and use the new Topaz Photo AI free for an unspecified period. It appears that Topaz Photo AI evaluates your image and decides how to apply Denoise, Sharpen and Gigapixel. While initially I did find it difficult to decide whether to apply Denoise AI, Sharpen AI or both, after several months I am reasonably happy I can choose how to use them. I have made a comparison of choosing manually or using Photo AI and can see no difference in the final images. My PC is rather old now so runs slow for any of the AI software. It certainly appeared that Topaz Photo takes longer than Sharpen and Denoise separately. Topaz suggest that, if you have an out of focus noisy shot which also needs enlarging then Topaz Photo is ideal. The problem is if I had all three issues, I would probably delete the image. If anyone else downloads Photo AI, it would be good to hear your experience.