Ok, yes, I went here this past weekend. My brothers and I are all grown up and have separate lives, so we thought it would be a great activity just for us to do. It is cheesy and yes, the music is very synthesized, but with enough ale (no mulled wine, sigh), it was a time to be had!
I had the veggie option and it was actually quite good. The meal consisted of: some sort of pita chip and hummus dip, veggie skewers (which included two kind of dry giant potato halves), rice with I think lentils and raisins (it was dark) and marinated mushrooms. There is a heated apple phyllo pastry for dessert. It was OK.
A number of people were surprised about the $24 beer because THEY DON"T TELL YOU what it costs until AFTER they give it to you. So ya, you get to keep the vessel, but if you want a refill, it's $15. So you paid $9 for the cup. My knight was killed first (boo Yellow Knight!!!) but I saw him in the lobby afterwards and told him I was sad he died.
You need to show up with an open mind and just go with it. There were a lot of kiddie birthday celebrations, but also bachelor parties, anniversaries and even a guy who asked his girlfriend to marry him right there.
Where else would you get to wear a paper crown that everyone keeps on their heads after the show and on public transit? Where else could you call your server wench?