Do you prefer REST over CSOM as I do? I’ll skip the whys. Andrew Connell put it already in wrtiting so nicely. Well, if you do prefer REST, then you must have discovered some shortcomings of REST, or its incompleteness compared to CSOM. I think of:
Inability to filter items based on multivalued taxonomy fields Inability to filter items based on user fields where user is added through a group, rather than directly, e.