News came about mid-day yesterday via Facebook that the Metzger Family Restaurant group had decided to close Gio Taco. Located off at 360 E. Congress St., the taco joint had opened just 15 months ago in the heart of downtown."Our take on tacos, inspired by the dynamic culinary traditions of the Americas, didn't earn the level of support that it needed for the restaurant to survive on the corner of Congress and Fourth," Metzger said in a statement.According to the statement from Metzger and MFR, the business had hoped to remain open until the end of the month, but the closing is effective immediately, despite trying to reach an agreement with their landlord."We aren't too proud to admit that some concepts simply don't work," the statement goes on to say.If you have gift certificates for Gio Taco, those will be honored at other MFR restaurants like Jackson Tavern and Poppy Kitchen.