It seems Gusto's 314 (1031 Lynch Street; 314-664-3600) is closed indefinitely -- maybe even for good. There was another Mama Gusto's 314 location that closed in February, but someone posted on Facebook at the time that a Soulard re-opening was possible. Gusto's 314 replaced Sage in Soulard in October.
E-mails to management have not been answered and the phone seems to be disconnected, but a tipster sent us the above photo. Although the sign says "Closed Today" and "For Cleaning," our informant says this sign has been on the door since at least Tuesday, January 28.
Gusto's 314's Facebook page was last updated with lunch specials on January 24. We'll update as we learn more.