I went to the event last year - but it was held on Day 2 (Saturday) in 2015 which was in the afternoon. They had alot of activities on the field of RWS including autograph signings with alumni, a photo opportunity at midfield, and dressing room tours. Bud Light had their Event Team onsite, and there were kids activities near the Team Store. They had the draft on the scoreboard to watch.
I reached out to my rep about this years event and he mentioned there will be on-field activities again along with access to the Jim Kelly Club for food/drink and a hang out spot. I'm still not 100% if I am going yet.