I heard the same thing about The Main. I noticed by the sign in the window that their sandwiches are a buck cheaper and there was no line-up. I'm not averse to trying it out by when Schwartz's is "right there" it's hard to pull myself away.
I've only ever had take out from Schwartz's so have never had to wait in line. I can't imagine eating inside anyway, it's way too bright and chaotic in there.