You can import mayaBinary, mayaAscii, OBJ, FBX, DAE_FBX, alembic caches, ATOM, STEP, WIRE, IGES, ASS, 3DS, CATIAV5, JT, SAT and NX files all at the same time. Furthermore you can filter your folder by file types. It automatically loads the needed plugin, no hassle. Easy to use and does not require any type of installation, just run the script. You can even drag and drop the script into Maya!