Costco is the place for large big buy savings, but this location needs to take some training from their competitors on Customer Service.
The Cashiers are hit and miss. You can go one day and get silence, and you can go another day and be pleasantly greeted by a great cashier.
The floor staff, on my trips here, are just unfriendly. It has been very usual to say hello or smile and get absolutely no response. You would think, because we pay for membership, wait in long lines, etc., they could be a little more gracious.