Gave it a shot, but this plugin just does not seem ready for prime time.
Maybe my issues are caused by the fact that I am not using Blender to create my STL/OBJ files, but there are lots of glitches that I can't figure out how to work around.
For example, upon initial load, the model is not centered in the window. When the user begins to rotate the model, however, it immediately snaps to the center position. I'd like to have the model start out centered, and having spent hours experimenting with various shortcode settings, I can't make that work.
The viewer also gets "stuck" on occasion, where there is no way to rotate the model, and instead all user inputs are translated into zoom functions.
This seems like a decent effort, and with some refinement it could be useful. But as it is currently, I couldn't use this on a professional website.