I'm not sure why other people state you can't change your sub- I change mine all the time! No mayo, add spicy mustard. Never been an issue. My (and my husband's) only complaint is the French bread they use for subs- it's ok, not really soft and actually not flavorful at all. I recently switched to the wheat bread, and it's awesome. Get that instead.
I've had delivery from this specific location at least twice and it always arrives within 10-15 minutes. Last delivery guy did make a point to let me know he couldn't find my address numbers on our house, and I admit they are kinda hard to see. He seemed convinced they didn't exist (they do) but I will be replacing them nonetheless so my subs arrive even quicker. Well, and so potential emergency responders don't drive by looking for my house number while I choke on a sub. Hey, it could happen.