This Starbucks is owned by Treasure Island and not corporate-owned, so they do not have perks like receiving stars or free modifiers using the Starbucks card. They can take your card number off the mobile phone app though. I only went here every morning because of its convenience. It was real Starbucks (not just proudly brewing).
I found the employees here friendly enough, but nothing more than absolutely necessary. There are no tables and chairs, so don't plan on sticking around. Get your coffee and move on. It's now the only Starbucks ON the street in this area of the strip. Just don't think you're going to have a religious experience with your morning cuppa joe.