Brooklynite here, Another hotel you might consider is Brooklyn Hilton. It's a few blocks north of Ace Hotel. If you're planning on walking around, it's closer to Brooklyn Bridge pedestrian entrance (if that's something you might want to do- "Hey, can I sell you a bridge" lol ) also near the Brooklyn Heights promenade which overlooks lower Manhattan. I haven't stayed in either hotel and am basing my comments solely on the locations.