I wish that I had been there during special occasions like during the holiday season, as it seems that this becomes a center of activity in Glasgow. In July it's just a decent square surrounded by some interesting buildings and a crowd of pigeons.
I always find it interesting that squares like this always attract a significant amount of sky rats. It didn't help that there were people feeding them to the point where the brazen little buggers were PERCHED ON THIS GUY'S HEAD. He now has the plague.
Good place to meet someone before heading to lunch, but not a must see on a trip.