I used to live nearby! Loved that silly thing, just don’t treat it like one big roundabout - it’s six chained roundabouts that you can use individually; both green and red routes are valid and legal for the same destination:
The biggest my city has is 2 lanes and 5 exits. That’s pretty easy; 1st or 2nd exit is ok in the right lane, anything else in the left, always yield to left lane.
This 4 lane 6 exit shit is wild. Oh, and you drive on the left for some extra “what the fuck?”