Haven't had any since the shakeup, but I loved their Oktoberfest last year. I thought it blew GLBC's out of the water, which is saying something. Great lager.
I've not had a lot of FB beer, but what I've had has been good. I've only had some Rusty Chain since the shakeup, but when I first moved to Buffalo a couple years back I had a beer they made called Warbird and it was absolutely amazing.
Hopefully FB can be more embraced by the community and grow into a beer icon of Buffalo.
My Favorite has always been their Oktoberfest. I think it's way better than Sam's. I'm not sure if they still do, but If any of you are into home brewing for 35 dollars they'll let you come in and make your own brew with them.