Horrible app The times were wrong for all the events and when you put it in manually and add a location in moves them around and deletes the location. Not helpful at all.
Not very useful Show floor map was helpful, although it sure would have been useful to include the services, conference rooms, food service, entrances, registration etc. outside of the exhibit halls. The locator never did work for me, even though the app clearly knew where I was because it sent me notifications about nearby booths. And it drained my battery in about five hours, so I didn't use it the second day.