Ohh....yes, Starbucks, the paradise of hackers and credit cards thefts. ... lol ...
I visit Starbucks but those inside B&N stores. I usually read or check new books there before buying via Kindle and read in on same store. Kind of ironic, I know.
I've noticed, maybe because the day or hour , that some Mc Donalds have faster wifi than Starbucks. Average Starbucks on my area give me 1mbps. The Mc Donalds I've visited give you 2 or 3 Mbps, average.
By the way, Mc Donals frapuccino is cheaper and better, IMO.