RBO:
-Conflict with arm chairs; one cannot encroach on the clear space in front of the other. Imagine sitting in one of those chairs; your knees would be hitting the person next to you.
-Make sure you have proper push-side clearance for doors into SO and LCR. It looks like the file cabinet is too close.
-Work table location is not ideal.
LCR:
-Make sure that there is a 36" clear path of travel around both long sides and at least one short side of the table.
JO:
-Room proportions are not ideal.
-Table for four does not work. Think of it this way: there always has to be a 36" clear path to each chair, as well as a minimum 36" clear from the edge of the table to the wall behind each chair. Try dragging the 36" sketch circle through the room to check.
These are good resources to review:
viewtopic.php?f=7&t=1237