I'm a big fan of Panera, especially the one on Fairview near Southpark mall. I think this one is managed a lot better than the one on Providence, at least from my experiences the past couple months.
The breakfast sandwiches are pretty tasty, I like the sausage, egg and cheese on ciabatta bread. They also have bacon or you can get it meatless. I haven't tried many of the bagels besides the free samples, but they seem to be good as well.
All locations have WiFi and don't block anything you should regularly need to get to.
They unfortunately serve Pepsi products.
Only complaint is they could have some more variety for their breakfast sandwiches, maybe offer some on bagels or different types of combinations.