Canon 100mm f/2.8 L IS Macro vs Canon TS-E f/4.0 L Macro

[Drainpipe]

People seem to be saying that a 135mm TS-E would have limited uses.
What would those limited uses typically be.
Would it be an unusual portrait lens.

There’s a lot of talk that it will make for a great product photography lens. Considering the .5x this is what I think most pros will buy it for.

I don’t think it would make a bad portrait lens, and you can be selective with the focus plane to get a little shallower DoF which I think will look unique. I doubt it’s going to replace the 135 f/2 or equivalent because of the lack of autofocus.