For exhibition-quality work, I use a combination of LRC, PS, and PhotoAI, depending on the need at the time. Great results!
For old print, negative and slide restoration, I use Photomyne, a smartphone-based app. With Photomyne, I take a photo of the print, negative or slide. with my phone. Photomyne processes it and delivers amazing results quickly. Many options are offered to improve the looks of the old work. You have the option of colorizing b/w works, and improving the image’s sharpness, for example, - Several ways to improve the quality by simply using your smart phone, as well as a more limited, but acceptable selection of enhancements on the computer version.
I have seen many questions about fixing old photographs. Perhaps Topaz can look at Photomyne.com and gather some possible options for PhotoAI to help with old photos, negatives and slides. Could be a valuable addition, and money-maker, to the Topaz family. I have never seen software before that can take my old pictures, automatically crop and manipulate them, and deliver my memories back in such good condition, practically immediately.