I love Sonic simply for the fact that, apparently due to low franchise fees and operating costs, I can find them even in towns with only 4000 people in them (this also applies to Subway)... given where I have to go for my job, this is a very good thing
They have excellent breakfast sandwiches, chicken sandwiches/wraps and cherry limeades. On the downside, their burgers are decent but not much to write home about, and, with the exception of their very good pineapple shake, their deserts leave much to be desired