people will bitch and moan that subway isn't "real" food. my experience is that it's generally middle of the road. I think in 20 years I've had only a couple of 'bad' experiences there (over dozens - probably hundreds). Very much dependent on the franchisor.

That said, it's still not 'convenient' in many areas - you still need to drive there, get out of a car, etc. No more convenient than other places.