... Is BB not worth it? I'm hearing negative food reviews.
"Worth it" is totally subjective for each guest.
A) Are you dining at BB for the chance to eat inside POTC? Since this is the only restaurant to offer this experience at DLR, then, yes, it will probably be worth it. Dining inside the bayou is lots of fun, and there really isn't anything else at DLR exactly like it.
B) Are you dining there for the F! seating area? That is our favorite F! viewing area, so we think it's worth it. (Again, no other restaurant at DLR offers that specific viewing location for F!, up front and center, so we either do the package at BB or don't view F! from that section.)
C) Are you dining at BB only for the food? Here's where things get tricky: some guests love the food there, some like the food, and some don't like it at all. Everyone is entitled to their opinion, and there are lots of other places at DLR to get food for the same price/less/more.
For us, the food isn't our absolute favorite at DLR, but we are flexible and know how to work our way around the menu. The kitchen staff has always been very helpful at working with us to adjust the menu to our needs. Things usually work out very well.
So, if your main focus is either A or B (or both), then, yes, BB is "worth it."