Adobe Standard is really not very good with the 5DS/R (I have the R-model and its the same). Here an example of how a custom profile brings back the deep shadows, controls the overpowering white and brings the red out in the shinny sun light. All this with zero adjustments other than a correct color profile instead of Adobe Standard. What is really interesting is that you get better control over both shadow and highlights at the same time(!) This would take a lot more effort to manually replicate in LR.
