I forgot it was part of the "Charlie's" enterprise, my favorite being the original Charlie's On Webster. The menu was fine, cheap and the food pretty good all things considered. Those things being the crazy crowds, families, noise, etc. But that's what you get at Navy Pier so no fault the Charlie.
I ordered the special, which was a vegi wrap served with fries or soup. I was impressed, large portion with a pretty tasty light dressing. The vegetables were fine, I could have used a little more flavor from the dressing or other seasonings, but perfectly acceptable. The tuna melt my friend ordered was also huge, served with fries, and quite tasty.
The service definitely could have been better, but again, comes with the territory. The portion sizes were plenty and the value actually not bad ($8 sandwiches). I would say this is a good place to grab a decent meal while hanging out at the Pier. I would go back if I had to eat a meal amongst the tourists, but that hasn't been a common situation.