Its your typical MMO bar, like in WoW, SWtOR, City of Heroes, etc. A straight bar with your binds on 1 through 0

It was a pain to use with a controller through because you needed to select each item on the bar individually with the D-Pad and activate it with A. I don't know if the binds are changed for this version, but the 1.0 hot bar was very very controller un-friendly.