The program has a lot of nice features but it is better dealing with jpg. The best for rendering NEF files is Nikon'S capture NX2. Lightroom is very slick and quick but is more limited in editing than Nx2 and much less capable than PS CS6. So it all depends on how detailed of manipulation you need and how much time you want to invest in learning the tool. If price is a concern, RawTherapee is free and good. I find need at times for the strengths of of LR, Nx2 and Cs6.