Upload & Sell: On
For a well exposed file, decent camera, and snapshot, light room's vibrance and saturation are okay. You probably do not want to hear this, but photoshop is demonstrably better and faster. I corrected over a hundred scanned slides LR. I was lazy. On pass two, I got serious and started working on the 700 others slides. I had the LR correction and the PS correction. PS was always superior and quicker. The original images had a large problem with shadow and highlights. Photoshop shadow highlight are much better than the shadow highlight slides of LR. For color correction and boost, I used Curvemeister, a PC only plugin.
BTW, you do know that LR was designed to be used top to bottom. It is a fine program, I use it weekly.