I also had a $10 groupon deal, great friendly staff who don't treat you any different by paying with a deal than other customers who paid regularly. I picked a blend for about $6 and added a few add-ons like green tea and ginseng for $1 each. When I was done picking, the ever helpful cashier told me that I can add some more stuff to the shake because I was still under $10 - now that's service!!