Warning - you are definitely going to get a range of opinions on this one!
Most of the (IMHO over) hype about B+C revolves around the "Kitchen Sink," a mass of supermarket grade ice cream covered with candy/syrup etc. Some think this is a gastronomic high whereas others (including yours truly) think its gooey, sloppy appeal really resides in a "more is better," excess-obsessed mindset.
Whatever, the rest of the menu is relatively standard malt shop fare, which is O.K but no better than what is at most CS spots in WDW. And because of the small size of the establishment (an element common to other over-hyped, really-tough-to-get-into spots in WDW like LeCellier) long waits here are generally common unless you go during off seasons (which October at the Epcot-area resorts is not) or at odd hours (read: non-prime times).
And now that I've given my 10 cents, get ready for some "it''s-a-don't-miss- to-die-for" posts. Again, all opinions here are subjective!