People tend to check in during these times:
Very friendly staff
Lola is the most helpful member of the team ;-)
Gingerbread Latte! Mmmmmmm
The best coffee in town, the queues just prove it!
Loyalty card is rubbish, as you need more than 20 coffees to get a free one! Tasty coffee though, and lovely frescatos. Popular, so queue can be long.
Frequent lattes and a Costa points card = free surprise coffee every now and then.
Go for the cappuccino - it's excellent!