They either need to start actually putting cash IN the cash machine or stop charging 50p for card purchases. There's NEVER any cash in the machine and it's robbery when their prices are already over-inflated to begin with.
Good selection of products but horrific queues, not enough staff and some of them (not all) are really rude and unhelpful.
My main bad point is the cash machine though. Sort it out or get rid of the card fees.