Just tried some stuff with the trial version of Photo Ninja from my trip to Longwood Gardens of Friday with the X-M1. Down at the pixel level Photo Ninja did MUCH better with details in the greenery, as well a few other areas, when compared with Lightroom 5.2.
Although I've been using the RAW conversion in Lightroom, I don't feel it's quite as nice as the in-camera conversions. I'll have to try some 3-way stuff doing a RAW, in-camera JPG, and conversions by the two programs with some of my material I like to print. It'll be interesting to see where each RAW conversion (including in camera) shines.