Update- I tried again. Ordered on the go. Simple iced coffee with milk and sugar. Placed order at 8:08 and still waiting for it at 8:20. There's no one in line. The guy who is making my coffee is on his 3rd try. Kept trying to give me a latte instead. I don't understand how this is so difficult. And the best part, this particular franchise doesn't care at all about customer service. They need a complete overhaul of their staff or they all need to go through training again.
Just avoid. Travel further west and go to the one on 83rd and Thunderbird. Drinks are hit or miss. They either nail it or make it totally incorrectly. Order on the go is a joke. It would be faster to wait in line. I keep giving them chances because they are so close to me but after waiting almost 10 minutes 2 days in a row for my order on the go, I'll go somewhere else.