This JJ's defines my lunch during the workweek; quick, cheap, to-go, online ordering. This location deserves the extra star for staying open on the weekends - something the rest of uptown needs to follow.
The staff here doesn't change too often, so it is nice that they remember the regulars. Be prepared for a line out the door during the week lunch rush. Like other uptown lunch spots, they are prepared for the rush and know how to pump out sandwiches rapidly.
I usually go with the #1 Pepe with bacon. Plenty of customization options available when ordering online.
Bike delivery available for uptown. The delivery people know the city and buildings well, always impressed how quick they show up.