Well, "better" is a word that can have many, many interpretations :)
It is much better for me, but I wrote the software because I was frustrated by the lighting systems found in all 3D softwares. I'm a photographer and used to lighting with real lights. Biased rendering, what is found in the majority of 3D programs, does not use realistic lighting.

When I saw what Lux was capable of doing I wrote Reality as a bridge between Poser and Lux. Reality takes all your Poser materials and automatically creates a version of those using physical models. It comes with its own set of lights and props that can give you, among other things, real water, predictable lighting based on how rel-life light works.

The results can be seen in our gallery: http://reality-plug-in.deviantart.com/

Is it better? Without taking anything away from Poser's excellent renderer, I do think so. I like realism and I like lighting in a simpler, predictable way, so in that regard it is better. In the last four years I used nothing else.

Cheers.

Paolo

https://www.preta3d.com
FB: https://www.facebook.com/RealityPlugIn
Tw: @preta3d
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The Reality Gallery: https://reality-plug-in.deviantart.com