The good: it's cheap, and it was located within a very short walking distance from my hotel. The bread was pretty good, and the chocolate chip cookie wasn't bad.
The bad: the lettuce on my veggie sandwich wasn't very good--it was the yellow stuff in the middle of a head of iceberg. I asked for no mayo, and most of my sandwich had no mayo. By the time I got to the last few bites, it was pretty clear that someone had forgotten my no mayo request and started to slather the mayonnaise on that end of the bread. The cheese slices on my sandwich were very thin, and I only knew that the promised guacamole was on there because I caught a glimpse of a little bit of it--I didn't really taste it.
Also--apparently you can make your sandwich "skinny" by not putting veggies on it, and they'll charge you less? This is one of the strangest promotions I've ever seen, but I guess if you hate vegetables, you should come here.