The “beauty” of reproducing slides is, that you have the original slides that you can check against the reproduction.
Slides can be dense and dynamic range as well as noise could be the one thing to watch carefully.
My usual recommendation is to play around (test) with a bunch of representative slides with varying exposure, contrast and density, and try things like multishot stitched images and/or stacked images for reduced noise and higher dynamic range, all of which has nothing to do with Negative Lab Pro, which is not needed for reproductions of positives, unless you try this: