We've done the breakfast at least twice and really enjoyed it. I remember once they sent us walking through Italy and up the hill to the Festhaus; another time they had the trams running and we were driven back around through employee and service areas and let out to the right of the Festhaus (when facing the front facade). Either way it's always fun to be in the park before the general public gets in.
The breakfast was good; for this event service was set up on buffet tables with chafing dishes in the dining area. Some other breakfast event I've been to used the regular serving lines but I know the last JH breakfast I went to had the lines in the dining room, like I said. Not too long after serving starts, JH will be seated at a table with a queue for pics/autographs. After the dining period is over, you get Jack and the staff up on the stage introducing the animals. The animals' handlers will walk each one down the main aisles where everyone is seated. You do get to see the animals much more up close than in the Globe, e.g.
If you're not into animals, it's probably not worth it, but if you (or your kids, they really seem to enjoy it) like animals, I think it's a fun experience.
BTW: The Concerts and Events page I looked at on the website says Sept 10 and 11 for Wild Days, but then when you click to purchase tickets, it says Sept 15 and 16, like PzP says. It would be nice not to have conflicting info like that!!
http://www.buschgardens.com/bgw/cp/default.aspx?page=wilddays
^This page says 2012 at the bottom, but maybe it's a holdover from last year?
Edit again: If HOS starts the 14th, I would think Wild Days might indeed be the 10th and 11th? Sound plausible??
UPDATE 8-11: Ok, I called the park and was told Sept 15 and 16, but to confirm I said, "even with HOS starting Sept 14?" and the rep was like, "oh, HOS doesn't start until the last weekend in September." True, but this year the website says "The haunts begin Sept 14th."
http://seaworldparks.com/en/buschgardens-williamsburg/Events/Howl-O-Scream
and here:
http://seaworldparks.com/en/buschgardens-williamsburg/Events
I've found the park doesn't keep consistent basic info very well anymore. I guess Wild Days is Sept 15 and 16, but I'm surprised it would conflict with HOS. Is HOS really starting that early? Off to check the HOS threads here on the site and anything else I can find (and I see that on the HOS Rumor thread around page 60, and probably before the site did discuss that HOS starts Sept 14) ... Would like to know for sure about the Wild Days tho.