Had my first Impossible Whopper the other day and here are my thoughts. I can tell the difference between the Impossible patty and the meat patty. The Impossible patty looks a little different and it tastes a little different. It doesn't taste bad but there is a difference. However, once all the other stuff is added to the burger, I don't think I could identify which burger is which. I don't plan on buying any more Whoppers in the near future, but if I do, I'll choose the Impossible Whopper because cow farts are bad.