Fast food chain like this, I don't care so much about the service, as long as it is clean. That being said, when I was there this morning, I saw a HUGE fly hovering over the food!! It first landed on the cheese, then the  lettuce, the pepper... Ugh, GROSS!! And the staff OBVIOUSLY noticed the fly and he did not do ANYTHING to get rid of it!! (He saw the fly and looked away. Seriously??) I will never step into that Subway in the future because I am not going to share my food with some disgusting insects.
If there is one fly out there at the counter, I wonder how many flies and other gross things they have back in the kitchen. :(