Currently resource contouring allows you to add in the exact hours per-day for a tasks duration. This has the potential to be incredibly helpful for resource management, albeit cumbersome.
I noticed that once the schedule changes, which in our agency is all the time, the hours get redistributed across the duration of the task evenly (negating any hours contouring that had been done). It would be lovely if it shifted the hours to the relative business days the task newly falls on. I think a scenario where the duration changes, an even redistribution makes sense, though.
Also, you have to set the hours in the project plan before you can contour them in the Scheduler. It would be more efficient to be able to set the total task hours in the scheduler while contouring instead of trying to match whatever total you had to put in the project plan.
And finally, I think this is actually a bug or something maybe not considered - those daily contoured hours need to surface through the allocation grids. Currently they do not, so I'm not even sure what the point is of using this feature without that data populating.