The staff here aren't always the best -- pretty miserable most of the time and the service can be frustratingly slow. I've been going daily for a long time and they still don't know my drink, despite ordering it the same each time!!
The queues here are some of the worst I've ever experienced, in ANY store - not just Asda! The choice is usually alright but it's just overshadowed by how busy it is. There doesn't ever seem to be a quiet time to nip in.