This event was awesome. We've been to Bourbonnais to watch the Bears practice, and even though it was free, there wasn't a good view of them practicing unless you had reserevations for a bleacher, which appeared to be all corporate groups. I'd gladly spend the money (which was VERY cheap) for the Family Fest at Soldier Field again. We were able to see everything they were doing (drills, scrimmage, etc). Even the announcer was letting everyone know what was going on at which end of the field. All concessions and souvenier shops were open as if it were a regular season game. I didn't get around to see what outdoor, pre-event activities were going on outside the field, but it looked like a lot of promo tents and little things for the kiddies to do.
All in all, this was a fun time! I recommend this if you can't afford to go to an actual game and if you'd like to watch their practice/training without having to drive 2 hours (if you live in the northwest suburbs).