Very good experience
Last year was my first year flying to Sun N Fun. All the descriptions of HBC were spot on. I arrived the Sunday night before the show and was greeted with a dinner of Burger King burgers and fries. No need to register but it does get busy once the show actually starts. The atmosphere is nice and laid back. As already stated donate to the kiddy and get a basic breakfast and dinner each night. Water, soda and some beer included. Lots of great people to meet and great planes to ogle over. HBC is a longer walk to the main show area but the tram runs right by the camping area.
South St Paul, MN