John,
I personally like Lightroom. I'm not fond of Adobe's decision to make it a subscription service as I preferred to buy and own a particular version. I have the last version of Lightroom that was sold as a stand-alone.
The advantage of Lightroom is that you never have to SAVE anything, which precludes going backward. As you move sliders or apply adjustment brushes (Lightroom's answer to layers), Lightroom is showing you what the image WOULD look like, if you exported and saved it, but the original file is untouched. At any time, you can export or save the current status, but if it's late at night and time to go to bed, you never have to save. Just shut your computer off and resume editing the next day. Lightroom also maintains a complete history of changes and adjustments, and you can back up to any point instantly. Photoshop has its strengths and you can always export and work there if the tools there are needed. But I think working with Lightroom is far less frustrating, particularly when you are doing as much experimentation as you need to do to recover some of these film shots. If you have the subscription to the whole creative suite, you should have Lightroom as well. If you've got Photoshop figured out, Lightroom should be easy to use. Just pull up the image and start moving sliders.
I have also noticed that the effect of the various types of controls varies between the different Adobe Products. In general, I think that the effect of sliders such as Shadows and Highlights are more gentile in Lightroom than in PhotoShop or PhotoShop Elements. If you are having trouble achieving a certain effect, it can be useful to try a different tool and see if you can get there.
Just a couple of thoughts...
/Kevin Madore