Just take the CCL MRT to either Esplanade or Promenade. It is
just a doorstep to Suntec City...
In a sense if you are from Yishun you could alight at Bishan and
take CCL to avoid e squeeze.
But if you are at EWL Western leg, it's another issue. Still
rather alight at City Hall and walk via Citylink Mall.
dua sen thought.