It's awesome they still offer the challenge. The rewards have come far since /Build 2011 hoodie, to 2013 Surface, to this years amazing Lumia 1520. That being said, the organization of the event could be improved. More stations and longer hours would help attendees. The people running the both did a great job, especially with adjusting the rules as to help with the high participation levels. I didn't catch her name, but the lady running it day 2 did an outstanding job. She communicated to everyone in line what was going on, and kept people moving in an out of the stations.