For all 3D artists using 3ds Max and/or Maya. You will get instant benefits.
If you are a 3ds Max user you can add a new dimension to your workflow by sending your scenes to Maya and use the advanced features of that software.
If you are a Maya user you can sometimes prefer to model inside 3ds Max for specific tools, or because you have models already done there, or because you have purchased some models in the past in .max format (arch models etc) and you want them inside a current Maya project in a fast way.