Simple menu - Cheeseburger or hamburger, with or without bacon. Add on fries (which are seasoned…read morewith seasoned salt) and a drink. The concept reminds me of the American Burgers - Shake Shacks (with out the stuffed portabello) but similar. The lines can get really long, but they move at an ok pace. Space for seating is limited, so either go in a group early and have someone reserve a table while you are in line to order, or take your burger to go. for a good burger in downtown rio, this place is worth checking out!