Well, my husband is the beer geek, (actually a beer guru), and we went to BRG&BW in 2008.
He wasn't impressed, which means the beer must have really sucked, because I've even seen him drink Bud out of a can when he's desperate! LOLOL
From my perspective; the carpeted floors were beer-soaked, which smelled a little funky, I thought. The food was ok, your usual brew-pub variety. We're from New England, where there are many excellent brew pubs, so maybe we're spoiled. We won't be going back there to eat (or drink) but perhaps things have turned around in the past year (maybe they've replaced the carpeting). We did get some really cool coasters, though!
For a real beer treat, head to Biergarten in Epcot's Germany.