I started using the ArcGIS Online Election Results Solution last summer and for the most part I have been able to configure and use it pretty easily for election night results mapping.
The only major issue that I am encountering is how do I symbolize the data to account for election ties. The way that it seems to function out of the box seems to assign a winner (guessing random or first record result) in the event of a tie instead of a separate classification for a tie.