Lightroom lets me quickly and efficiently edit photos, while maintaining change accuracy across entire photo portfolio. I am easily able to copy settings from one photo and add them to another, while also saving and setting up my own presets.
I don't love the spot editing tool, personally I prefer to use photoshop for major edits i.e. skin/blemish/background edits/etc. If the spot edit tool was more like the PSD tool (and also add the clone stamp in!) - I would really be able to manage all edits through lightroom.
YOU WON'T REGRET USING LIGHTROOM FOR YOUR PHOTO EDIT NEEDS!
As far as business problems go, the biggest issue I'm solving is consistency. I am able to create my own presets which are true to each branding profile I work on (unique to each client). I'm easily able to sort my edits and categorize them, so I can quickly maneuver and edit. Through these efficiencies, I am able to work faster and keep consistency for my brands!