I've been to a Firehouse once (in Clemson) and think it was alright, but it's been a while. Out here, Togo's is a decent chain. I prefer the one-off sandwich shops such as Bay Cities (slightly pricey) and had some phenomenal sandwiches from a little place out somewhere in the valley recently (a friend brought them over). I heartily agree that Quiznos is overpriced and even think that Subway is as well, so often just make my own.