People tend to check in during these times:
Self service is annoying, staff Are friendly, food quality is average, overpriced sometimes!
Discounted sandwiches every day in the afternoon!
Check your receipt
Loads of reduced stuff often! Friendly staff, queue moves quickly too. Avoid self service.
Don't shop here! They sell mouldy food and drinks which are still in date so you don't realise until you get home. Happened to me twice in 2 weeks with different products!
open till 11pm!