Brainwave Cafe is a split-level space tucked away in an unassuming Ultimo building. Bar and outdoor seating is available and in a light-filled space. The upstairs seating involves a communal table, some benches around the edge of the room, and a set of couches. Small glass bottles filled with dried flowers decorate the room along with a bookshelf containing an eclectic selection of things like the specialty coffee book, piano for dummies, and a box of legos.